776604be66
Using layout panels in this context is not yet supported. Therefor, the fix is to raise an exception instead of crashing. The problem here is that layout panels need an a parent panel which has a persistent state. The popover currently does not only has a very short-lived panel currently that is freed directly after drawing. Also see `ui_paneltype_draw_impl`. It's likely that support for this can be added in the future but it's currently unclear how many changes this would require.
Blender
Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing.
Project Pages
Development
License
Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license.
See blender.org/about/license for details.