Crash on help search class list display
When compiling Godot with Futari, I'm unable to open the offline documentation of Godot.
Step to reproduce:
- compile Godot with Futari
- open the offline documentation of Godot
More about the issue:
Godot's ClassDB::_create_hierachy_class crashes when trying to build the hierachy. After exploring a bit more the source, I finally understood that FutariModifier was needed to be registered to ClassDB as virtual class (since it is an abstract one) to avoid this crash.