i would like to detect (before the action is done) that a new branch will be created as a result of a move of an item inside the tree, so i can prevent it.
Through DropEvent I can get the proposed action for move but cannot figure out that the proposed action will also create a branch.
how can i do that?
An other way for me to solve it, would be to authorize move, but prevent branch creation, i don't know either how to do that.
Many Thanks in advance
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