Fatal error on triggering a cutscene when running using custom state
[Solarus]  Fatal: Events should be called in the main Lua thread triggers in ALTTD project when i trigger a cinematic (the owl flying and talking to the hero scene, which uses a coroutine) as i run with custom running state (note : custom jumping works fine tho).
Steps (simple way) :
- Launch the ALTTD quest in debug mode with branch sideview_refactoring
- go to examples/test_map
- go to the right side of the map, at the "owl test" section
- run through the brownish corridor. it will triggera the owl cutscene and crash