Some fixes to scenario dirty flag

src/scenedit/scen.fileio.cpp

@@ -1030,6 +1030,8 @@ void save_scenario(bool rename) {
 		writeDialogueToXml(ticpp::Printer("talk.xml", town_talk), scenario.towns[i]->talking, i);
 	}
 
+	change_made = false;
+	
 	// Alright. At this point, check to see if the scenario was unpacked.
 	if(fs::is_directory(toFile)) {
 		// If it was, we just need to save each file to its respective location

src/scenedit/scen.townout.cpp

@@ -22,7 +22,7 @@
 #include "fileio.hpp"
 
 extern short cen_x, cen_y, overall_mode;
-extern bool mouse_button_held,editing_town;
+extern bool mouse_button_held,editing_town,change_made;
 extern short cur_viewing_mode;
 extern cTown* town;
 extern short mode_count,to_create,cur_town;
@@ -1232,6 +1232,8 @@ bool new_town(short which_town) {
 				}
 			}
 
+	change_made = true;
+	
 	return true;
 }
 
@@ -1240,6 +1242,7 @@ void delete_last_town() {
 	cTown* last_town = scenario.towns.back();
 	scenario.towns.pop_back();
 	delete last_town;
+	change_made = true;
 }
 
 cTown* pick_import_town() {