From 9a8603d01e5009dfb83ea879c96a9aaca7f9bcf7 Mon Sep 17 00:00:00 2001
From: helixhorned <helixhorned@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Fri, 25 Nov 2011 09:50:40 +0000
Subject: [PATCH] - Make old-nextwalls invalid on the following two occasions:
 ovh_whiteoutgrab   with no highlighted sectors; and when entering 3D mode,
 even if there are   highlighted sectors. This should have almost no effect,
 but I find it cleaner   that way. - Check map for corruption every time an
 editing change is done. This was   accidentally disabled when commenting out
 the undo code (which I've yet   to debug).

git-svn-id: https://svn.eduke32.com/eduke32@2121 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/build/src/build.c | 6 +++++-
 polymer/eduke32/source/astub.c    | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/polymer/eduke32/build/src/build.c b/polymer/eduke32/build/src/build.c
index 6b12c3c25..23332dd8f 100644
--- a/polymer/eduke32/build/src/build.c
+++ b/polymer/eduke32/build/src/build.c
@@ -1621,7 +1621,10 @@ void ovh_whiteoutgrab(int32_t restoreredwalls)
             wall[j].nextsector = -1;
         }
 
-    mkonwvalid();
+    if (highlightsectorcnt > 0)
+        mkonwvalid();
+    else
+        mkonwinvalid();
 }
 
 static void duplicate_selected_sectors(void)
@@ -6896,6 +6899,7 @@ CANCEL:
             checksectorpointer(j, highlightsector[i]);
         }
     }
+    mkonwinvalid();
 
     fixspritesectors();
 
diff --git a/polymer/eduke32/source/astub.c b/polymer/eduke32/source/astub.c
index 57e2046bb..e7312a202 100644
--- a/polymer/eduke32/source/astub.c
+++ b/polymer/eduke32/source/astub.c
@@ -11290,6 +11290,8 @@ void ExtCheckKeys(void)
         {
 #if M32_UNDO
             create_map_snapshot();
+#else
+            CheckMapCorruption(6, 0);
 #endif
             asksave++;
         }