System Information
Win7/64
Blender Version
blender-2.70-51fa66b-win64
Short description of error
Undo doesn't work after joining two curves
Exact steps for others to reproduce the error
Add two curves and join them. Undo doesn't undo then.
Description
Description
Event Timeline
Comment Actions
The undo works for me, but for the second ctrl-z. It seems the first undo does nothing. This happens elsewhere too in Blender. I don't know is it really an "empty" undo, maybe does something not visible. As I know Blender compares the whole scene data with its previous version when creating undo. Is it possible to put a completely empty undo step onto the undo stack?
Comment Actions
Ok, I have to undo twice because "Join" adds two items to the undo stack: 1.Editmode, 2. Join. So I have to first undo Join, then undo Editmode. However, I was never in edit mode. EDIT: Also tested with latest build blender-2.70-be980b9-win64
Comment Actions
Editmode is there because the join_curve_exec() function calls ED_object_editmode_enter() and immediately after ED_object_editmode_exit(). It seems the second step of the undo information is created here.
Comment Actions
Yes, some ops can generate more than one undo steps… Even though this is not top notch, this isn’t really an issue either, and anyway considered a limitation of our current history system, not a bug. Thanks for the report, anyway.