It's not possible to undo part addition

[azuk]

When you add a library part to a document and then attempt to undo the addition, you end up undoing some earlier operation. It would be nice if undo could be supported (if not, perhaps the next best thing would be to display something like "Undo not supported for part import" or something like that in the Report view and not do anything else).

OS: Ubuntu 20.04.3 LTS (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 0.20.24436 (Git)
Build type: Debug
Branch: master
Hash: bf527ba5ed9cbde0813e702c2f3793fb55f5be7c
Python version: 3.8.10
Qt version: 5.12.8
Coin version: 4.0.0
OCC version: 7.3.0
Locale: English/United States (en_US)