Add a way to force history for undoredo #79796
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Fixes #79750
The problem was that visual shader editor created a new resource that was nested in an external resource and the action was created before that resource had a path. This made EditorUndoRedoManager assume that the nested resource is part of the scene (which is default assumption for built-in resources with empty path). It's difficult to automatically determine where the object should belong in this case, so I added a method
force_correct_history(), which allows the user to explicitly tell the undo system that the object belongs to the correct history.EDIT:
Added a fix for #91830 (comment) (error when renaming animation in external SpriteFrames)