In this FreeCAD workbench, pattern A made a copy, pattern B repeated it, and shrinking or deleting A left B with a broken link and no error in the tree. A color set on one half of a split solid also went to the other half because they shared origins.
From the Grok pain-radar digests, Nov 1-2 2026 (Nov 1 8:41 AM ET through Nov 2 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-02: issue/PR read; title and state confirmed.