Replace button remains inactive sometimes

[DeepSOIC]

had it when i made a cut operation into a loft, and then wanted to replace all refs to the loft with the cut version. Selecting from tree didn't work (button was inactive), but selecting in 3d view worked fine.

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.26155 (Git)
Build type: Release
Branch: master
Hash: 0926a4148bcff11249fd4f56bc30256102ffe105
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/Germany (en_DE)

[DeepSOIC]

Steps to reproduce:

1. create Module
2. add two Part primitives
3. do a boolean cut
4. select one of the primitives and the Cut in Model tree

-> replace button is inactive
-> Gui.GetSelection() and Gui.GetSelectionEx() both return one selected object, while there clearly are two. It's an API bug, may be fixed in newer FreeCAD.

[DeepSOIC]

https://forum.freecad.org/viewtopic.php?t=77214