Crash occurs due to channeltype ANIMTYPE_GREASE_PENCIL_DATABLOCK added
to the filtered list when rearranging nla strips. This channel seems
unnecessary, it has caused crashes in past as well (d943c9f128). Animation data
on object other than drawing-keys are already handled by `animfilter_block_data`.
Pull Request: https://projects.blender.org/blender/blender/pulls/135375