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Deletes the version of the treenode in the highest layer.
Syntax
public boolean deleteIdenticalCopy()
Run On
Called
Return Value
Type: boolean
true if the deletion is successful; otherwise, false.
Remarks
Typically, this method should only be used to delete a copy of a version in lower layer.However, if “form1” exists in 3 identical versions: form1(oldSys), form1(oldUsr), form1(Usr) then we want to delete form1(Usr).