Game state cleanup

core/src/mindustry/editor/MapEditorDialog.java

@@ -247,11 +247,11 @@ public class MapEditorDialog extends Dialog implements Disposable{
             player.reset();
             state.rules = Gamemode.editor.apply(lastSavedRules.copy());
             state.rules.sector = null;
-            world.setMap(new Map(StringMap.of(
-                "name", "Editor Playtesting",
-                "width", editor.width(),
-                "height", editor.height()
-            )));
+            state.map = new Map(StringMap.of(
+                    "name", "Editor Playtesting",
+                    "width", editor.width(),
+                    "height", editor.height()
+                ));
             world.endMapLoad();
             //add entities so they update. is this really needed?
             for(Tile tile : world.tiles){