Fix incorrect small font rendering with Hexen Mac IWAD

Unused high resolution font lumps broke composite font logic
Small font had doubled height because of that, at least alternate HUD and inter-hub text messages had noticeable visual issues

src/w_wad.cpp

@@ -184,6 +184,7 @@ void FWadCollection::InitMultipleFiles (TArray<FString> &filenames)
 	}
 	RenameNerve();
 	RenameSprites();
+	FixMacHexen();
 
 	// [RH] Set up hash table
 	FirstLumpIndex = new DWORD[NumLumps];
@@ -956,6 +957,41 @@ void FWadCollection::RenameNerve ()
 	}
 }
 
+//==========================================================================
+//
+// FixMacHexen
+//
+// Rename unused high resolution font lumps because they are incorrectly
+// treated as extended characters
+//
+//==========================================================================
+
+void FWadCollection::FixMacHexen()
+{
+	if (GAME_Hexen != gameinfo.gametype)
+	{
+		return;
+	}
+
+	for (int i = GetFirstLump(IWAD_FILENUM), last = GetLastLump(IWAD_FILENUM); i <= last; ++i)
+	{
+		assert(IWAD_FILENUM == LumpInfo[i].wadnum);
+
+		FResourceLump* const lump = LumpInfo[i].lump;
+		char* const name = lump->Name;
+
+		// Unwanted lumps are named like FONTA??1
+
+		if (8 == strlen(name)
+			&& MAKE_ID('F', 'O', 'N', 'T') == lump->dwName
+			&& 'A' == name[4] && '1' == name[7]
+			&& isdigit(name[5]) && isdigit(name[6]))
+		{
+			name[0] = '\0';
+		}
+	}
+}
+
 //==========================================================================
 //
 // W_FindLump

src/w_wad.h

@@ -238,6 +238,7 @@ protected:
 private:
 	void RenameSprites();
 	void RenameNerve();
+	void FixMacHexen();
 	void DeleteAll();
 };