Gravship travel between maps causes game freeze due to cross-map window reference

[notfood]

ArgumentOutOfRangeException in Building_Window.MapUpdateHandler when accessing Map from wrong instance during Gravship landing.

Modlist:

    <li>brrainz.harmony</li>
    <li>ludeon.rimworld</li>
    <li>ludeon.rimworld.odyssey</li>
    <li>jpt.openthewindows</li>

Steps to reproduce:

• Have a base with a window and a Gravship with a window on a different map.
• Travel from a different base to your base with your Gravship.
• Game freezes

Error can be found in:

OpenTheWindows/Source/Building_Window.cs

Line 637 in 9882fc5

if (info.map != Map) return;

Thing.Map isn't there yet, needs to check for Thing.Spawned before using it possibly.

Exception from long event: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
[Ref 3817840A]
 [0x0000c] in <e3b07672ffbd43c1838e1ebbe94cbdf5>:0 
  at System.Collections.Generic.List`1[T].get_Item (System.Int32 index) [0x00009] in <e3b07672ffbd43c1838e1ebbe94cbdf5>:0 
  at Verse.Thing.get_Map () [0x00013] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at OpenTheWindows.Building_Window.MapUpdateHandler (System.Object sender, OpenTheWindows.MapUpdateWatcher+MapUpdateInfo info) [0x00001] in <90c5609dff684b08a400b02af2d86df4>:0 
(wrapper delegate-invoke) System.EventHandler`1[OpenTheWindows.MapUpdateWatcher+MapUpdateInfo].invoke_void_object_TEventArgs(object,OpenTheWindows.MapUpdateWatcher/MapUpdateInfo)
  at OpenTheWindows.MapUpdateWatcher.OnMapUpdate (System.Object sender, OpenTheWindows.MapUpdateWatcher+MapUpdateInfo info) [0x0000a] in <90c5609dff684b08a400b02af2d86df4>:0 
  at OpenTheWindows.ThingGrid_Register.Postfix (Verse.Thing t, Verse.IntVec3 c) [0x00059] in <90c5609dff684b08a400b02af2d86df4>:0 
  at Verse.ThingGrid.RegisterInCell (Verse.Thing t, Verse.IntVec3 c) [0x0007d] in <1a4764477a744bde81c4adb46c2ccd65>:0 
    - POSTFIX JPT.OpenTheWindows: Void OpenTheWindows.ThingGrid_Register:Postfix(Thing t, IntVec3 c)
  at Verse.ThingGrid.Register (Verse.Thing t) [0x0002e] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.Thing.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x001bb] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.ThingWithComps.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x00000] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.Building.SpawnSetup (Verse.Map map, System.Boolean respawningAfterLoad) [0x0005d] in <1a4764477a744bde81c4adb46c2ccd65>:0 
    - POSTFIX JPT.OpenTheWindows: Void OpenTheWindows.Building_SpawnSetup:Postfix(Building __instance, Map map)
  at Verse.GenSpawn.Spawn (Verse.Thing newThing, Verse.IntVec3 loc, Verse.Map map, Verse.Rot4 rot, Verse.WipeMode wipeMode, System.Boolean respawningAfterLoad, System.Boolean forbidLeavings) [0x00276] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at RimWorld.GravshipPlacementUtility.SpawnNonPawnThings (RimWorld.Planet.Gravship gravship, Verse.Map map, System.Collections.Generic.List`1[T] gravshipThings, Verse.IntVec3 root) [0x00053] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at RimWorld.GravshipPlacementUtility.PlaceGravshipInMap (RimWorld.Planet.Gravship gravship, Verse.IntVec3 root, Verse.Map map, System.Collections.Generic.List`1[Verse.Thing]& spawned) [0x00094] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.WorldComponent_GravshipController.PlaceGravship (RimWorld.Planet.Gravship gravship, Verse.IntVec3 root, Verse.Map map) [0x00000] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.WorldComponent_GravshipController+<>c__DisplayClass53_2.<InitiateLanding>b__5 () [0x0006e] in <1a4764477a744bde81c4adb46c2ccd65>:0 
  at Verse.LongEventHandler.UpdateCurrentSynchronousEvent (System.Boolean& sceneChanged) [0x0001d] in <1a4764477a744bde81c4adb46c2ccd65>:0 

Attaching a save that reproduces the error, merely travel back to home.

GravshipFreeze.rws.zip