Deleting Map Deletes Tokens from Combat Tracker

[Griogre]

If you create a map and drop tokens from the combat tracker on the map when you delete the map with the tokens still on them, the tokens on the combat tracker are erased. The tokens should stay when a tempary encounter map is deleted.

This only seems to happen when the tokens are only on one map and it was deleted. Its anoying because you then have to "re-token" the combat tracker.