Backport PR #55764 on branch 2.1.x (REGR: fix return class in _constructor_from_mgr for simple subclasses)
Backport PR #55764: REGR: fix return class in _constructor_from_mgr for simple subclasses
I think we might need the fix in #55885 for this. I think it is https://github.com/pandas-dev/pandas/pull/55427 that needs to be backported Or both ;) Removed my temp commits again