Lockup/crash when deleting vertices

[andybak]

Haven't found a consistent way to trigger this but it happens reasonably frequently.

OutOfMemoryException: Out of memory
System.Collections.Generic.List`1[T].set_Capacity (System.Int32 value) (at <eae584ce26bc40229c1b1aa476bfa589>:0)
System.Collections.Generic.List`1[T].EnsureCapacity (System.Int32 min) (at <eae584ce26bc40229c1b1aa476bfa589>:0)
System.Collections.Generic.List`1[T].InsertRange (System.Int32 index, System.Collections.Generic.IEnumerable`1[T] collection) (at <eae584ce26bc40229c1b1aa476bfa589>:0)
System.Collections.Generic.List`1[T].AddRange (System.Collections.Generic.IEnumerable`1[T] collection) (at <eae584ce26bc40229c1b1aa476bfa589>:0)
com.google.apps.peltzer.client.tools.Deleter.DeleteVertex (com.google.apps.peltzer.client.model.core.VertexKey vertexKey) (at Assets/Scripts/tools/Deleter.cs:239)
com.google.apps.peltzer.client.tools.Deleter.DeleteAPart () (at Assets/Scripts/tools/Deleter.cs:189)
com.google.apps.peltzer.client.tools.Deleter.ControllerEventHandler (System.Object sender, com.google.apps.peltzer.client.model.controller.ControllerEventArgs args) (at Assets/Scripts/tools/Deleter.cs:176)
com.google.apps.peltzer.client.model.controller.ControllerMain.ControllerEventHandler (System.Object sender, com.google.apps.peltzer.client.model.controller.ControllerEventArgs args) (at Assets/Scripts/model/controller/ControllerMain.cs:45)
com.google.apps.peltzer.client.model.controller.PeltzerController.DetectTrigger (com.google.apps.peltzer.client.model.controller.ControllerDevice controller) (at Assets/Scripts/model/controller/PeltzerController.cs:1099)
com.google.apps.peltzer.client.model.controller.PeltzerController.ProcessButtonEvents () (at Assets/Scripts/model/controller/PeltzerController.cs:525)
com.google.apps.peltzer.client.model.controller.PeltzerController.Update () (at Assets/Scripts/model/controller/PeltzerController.cs:473)