Traceback (most recent call last):
File "C:\Users\Invendelirium\AppData\Roaming\FreeCAD\Mod\Part-o-magic\.\PartOMagic\Gui\LinkTools\TaskReplace.py", line 116, in eventFilter
if widget is self.form.treeR:
AttributeError: 'NoneType' object has no attribute 'treeR'