# Blender 2.83.8, Commit date: 2020-10-21 08:12, Hash 5949b796f002
bpy.ops.sculpt.dynamic_topology_toggle()  # Operator
bpy.ops.sculpt.dynamic_topology_toggle()  # Operator
bpy.ops.mesh.paint_mask_extract()  # Operator

# backtrace
/snap/blender/49/blender(BLI_system_backtrace+0x1d) [0x6989e5d]
/snap/blender/49/blender() [0xc15ae2]
/lib/x86_64-linux-gnu/libc.so.6(+0x3efd0) [0x7fd70f13efd0]
/snap/blender/49/blender(BKE_scene_object_base_flag_sync_from_base+0x8) [0xcea908]
/snap/blender/49/blender(BKE_scene_set_background+0x58) [0xcea968]
/snap/blender/49/blender() [0x165b2d6]
/snap/blender/49/blender(BKE_blendfile_read_from_memfile+0x51) [0x165b851]
/snap/blender/49/blender(BKE_memfile_undo_decode+0xa1) [0x165adb1]
/snap/blender/49/blender() [0x14deb85]
/snap/blender/49/blender() [0x167128d]
/snap/blender/49/blender(BKE_undosys_step_undo_with_data_ex+0xba) [0x167202a]
/snap/blender/49/blender() [0x14dd755]
/snap/blender/49/blender() [0x14dd7e1]
/snap/blender/49/blender() [0xec74f3]
/snap/blender/49/blender() [0xeca0e5]
/snap/blender/49/blender() [0xecb599]
/snap/blender/49/blender() [0xecb92c]
/snap/blender/49/blender(wm_event_do_handlers+0x63e) [0xecc36e]
/snap/blender/49/blender(WM_main+0x20) [0xec2c90]
/snap/blender/49/blender(main+0x311) [0xb4c621]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fd70f121b97]
/snap/blender/49/blender() [0xc1225c]