Fixed, Script Editor: in some cases the editor was unable to restore saved script file settings.

Fixed, Drag Linedefs, Drag Vertices, Edit Selection modes: in some cases sidedefs were incorrectly removed when modifying a closed section of a multi-part sector.
Fixed, Drag Linedefs, Drag Vertices, Drag Sectors, Edit Selection modes: in some cases sidedef textures were not adjusted after applying the modes, leaving middle textures on double-sided lines.

Source/Core/Geometry/Tools.cs

@@ -2489,6 +2489,9 @@ namespace CodeImp.DoomBuilder.Geometry
 				{
 					if(side.Sector != nearest) sidesectorref[side] = nearest;  // This side will be reattached in phase 2
 					else sidesectorref.Remove(side); // This side is already attached where it needs to be
+
+					// Store
+					adjustedsides.Add(side);
 				}
 				else
 				{
@@ -2574,9 +2577,41 @@ namespace CodeImp.DoomBuilder.Geometry
 		{
 			List<LinedefSide> sectorsides = FindPotentialSectorAt(line, front);
 			if(sectorsides == null) return null;
+			Sector result = null;
+
+			// Special case: if sectorsides match sidestoexclude and all sidestoexclude reference the same sector, return that sector
+			if(sidestoexclude.Count > 2 && sectorsides.Count == sidestoexclude.Count)
+			{
+				bool allsidesmatch = true;
+
+				// Check if all sidestoexclude reference the same sector...
+				foreach(Sidedef s in sidestoexclude)
+				{
+					if(result == null) result = s.Sector;
+					else if(result != s.Sector)
+					{
+						allsidesmatch = false;
+						break;
+					}
+				}
+
+				// Check if sidestoexclude match sectorsides...
+				if(allsidesmatch)
+				{
+					HashSet<Sidedef> sectorsidesset = new HashSet<Sidedef>();
+					foreach(LinedefSide ls in sectorsides)
+					{
+						sectorsidesset.Add(ls.Front ? ls.Line.Front : ls.Line.Back);
+					}
+
+					allsidesmatch = sectorsidesset.SetEquals(sidestoexclude);
+				}
+
+				// Sides are already where they need to be
+				if(allsidesmatch) return result;
+			}
 
 			// Filter outersides from the list, proceed only if all sectorsides reference the same sector
-			Sector result = null;
 			foreach(LinedefSide sectorside in sectorsides)
 			{
 				Sidedef target = (sectorside.Front ? sectorside.Line.Front : sectorside.Line.Back);

Source/Core/Map/MapOptions.cs

@@ -438,16 +438,21 @@ namespace CodeImp.DoomBuilder.Map
         {
             ScriptDocumentSettings settings = new ScriptDocumentSettings { FoldLevels = new Dictionary<int, HashSet<int>>() };
 
-            // Copy information from Configuration to ScriptDocumentSaveSettings
+			// Copy information from Configuration to ScriptDocumentSaveSettings
-            if (scfinfo.Contains("filename") && (scfinfo["filename"] is string)) settings.Filename = (string)scfinfo["filename"];
+			if(scfinfo.Contains("filename") && (scfinfo["filename"] is string)) settings.Filename = (string)scfinfo["filename"];
-            if (scfinfo.Contains("hash") && (scfinfo["hash"] is long)) settings.Hash = (long)scfinfo["hash"];
+			if(scfinfo.Contains("hash"))
-            if (scfinfo.Contains("caretposition") && (scfinfo["caretposition"] is int)) settings.CaretPosition = (int)scfinfo["caretposition"];
+			{
-            if (scfinfo.Contains("firstvisibleline") && (scfinfo["firstvisibleline"] is int)) settings.FirstVisibleLine = (int)scfinfo["firstvisibleline"];
+				// Configuration will parse the value as int if it's inside int type bounds.
-            if (scfinfo.Contains("activetab") && (scfinfo["activetab"] is bool)) settings.IsActiveTab = (bool)scfinfo["activetab"];
+				if(scfinfo["hash"] is int) settings.Hash = (int)scfinfo["hash"];
-            if (scfinfo.Contains("foldlevels") && (scfinfo["foldlevels"] is string))
+				else if(scfinfo["hash"] is long) settings.Hash = (long)scfinfo["hash"];
-            {
+			}
-                // 1:12,13,14;2:21,43,36
+			if(scfinfo.Contains("caretposition") && (scfinfo["caretposition"] is int)) settings.CaretPosition = (int)scfinfo["caretposition"];
-                string foldstr = (string)scfinfo["foldlevels"];
+			if(scfinfo.Contains("firstvisibleline") && (scfinfo["firstvisibleline"] is int)) settings.FirstVisibleLine = (int)scfinfo["firstvisibleline"];
+			if(scfinfo.Contains("activetab") && (scfinfo["activetab"] is bool)) settings.IsActiveTab = (bool)scfinfo["activetab"];
+			if(scfinfo.Contains("foldlevels") && (scfinfo["foldlevels"] is string))
+			{
+				// 1:12,13,14;2:21,43,36
+				string foldstr = (string)scfinfo["foldlevels"];
 
                 // Convert string to dictionary
                 if (!string.IsNullOrEmpty(foldstr))

Source/Plugins/BuilderModes/ClassicModes/DragLinedefsMode.cs

@@ -129,16 +129,17 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				//mxd. Reattach/add/remove outer sidedefs
 				HashSet<Sidedef> adjustedsides = Tools.AdjustOuterSidedefs(toadjust, changedlines);
 
+				//mxd. Split outer sectors
+				Tools.SplitOuterSectors(changedlines);
+
 				//mxd. Remove unneeded textures
 				foreach(Sidedef side in adjustedsides)
 				{
+					if(side.IsDisposed) continue;
 					side.RemoveUnneededTextures(true, true, true);
 					if(side.Other != null) side.Other.RemoveUnneededTextures(true, true, true);
 				}
 
-				//mxd. Split outer sectors
-				Tools.SplitOuterSectors(changedlines);
-
 				// If only a single linedef was selected, deselect it now
 				if(selectedlines.Count == 1) General.Map.Map.ClearSelectedLinedefs();
 			}

Source/Plugins/BuilderModes/ClassicModes/DragSectorsMode.cs

@@ -132,16 +132,17 @@ namespace CodeImp.DoomBuilder.BuilderModes
 				//mxd. Process outer sidedefs
 				HashSet<Sidedef> adjustedsides = Tools.AdjustOuterSidedefs(toadjust, changedlines);
 
+				//mxd. Split outer sectors
+				Tools.SplitOuterSectors(changedlines);
+
 				//mxd. Remove unneeded textures
 				foreach(Sidedef side in adjustedsides)
 				{
+					if(side.IsDisposed) continue;
 					side.RemoveUnneededTextures(true, true, true);
 					if(side.Other != null) side.Other.RemoveUnneededTextures(true, true, true);
 				}
 
-				//mxd. Split outer sectors
-				Tools.SplitOuterSectors(changedlines);
-
 				// If only a single sector was selected, deselect it now
 				if(selectedsectors.Count == 1)
 				{

Source/Plugins/BuilderModes/ClassicModes/DragVerticesMode.cs

@@ -123,16 +123,17 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					// Reattach/add/remove outer sidedefs
 					HashSet<Sidedef> adjustedsides = Tools.AdjustOuterSidedefs(toadjust, changedlines);
 
+					// Split outer sectors
+					Tools.SplitOuterSectors(changedlines);
+
 					// Remove unneeded textures
 					foreach(Sidedef side in adjustedsides)
 					{
+						if(side.IsDisposed) continue;
 						side.RemoveUnneededTextures(true, true, true);
 						if(side.Other != null) side.Other.RemoveUnneededTextures(true, true, true);
 					}
 
-					// Split outer sectors
-					Tools.SplitOuterSectors(changedlines);
-
 					// Additional verts may've been created
 					if(selectedverts.Count > 1)
 					{

Source/Plugins/BuilderModes/ClassicModes/EditSelectionMode.cs

@@ -1658,15 +1658,16 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					// Change floor/ceiling height?
 					if(!pasting) AdjustSectorsHeight(affectedsectors, heightadjustmode, oldoutsidefloorheight, oldoutsideceilingheight);
 
+					// Split outer sectors
+					Tools.SplitOuterSectors(changedlines);
+
 					// Remove unneeded textures (needs to be done AFTER adjusting floor/ceiling height)
 					foreach(Sidedef side in adjustedsides)
 					{
+						if(side.IsDisposed) continue;
 						side.RemoveUnneededTextures(true, true, true);
 						if(side.Other != null) side.Other.RemoveUnneededTextures(true, true, true);
 					}
-
-					// Split outer sectors
-					Tools.SplitOuterSectors(changedlines);
 				}
 				
 				// Update cached values