Missing proper tagging of 'backward' pointer from fcurve to its group in RNA would lead to infinite loop... Issue was triggered by override, but crash could be generated from other places as well (like from py console), on any action actually...
Missing proper tagging of 'backward' pointer from fcurve to its group in RNA would lead to infinite loop... Issue was triggered by override, but crash could be generated from other places as well (like from py console), on any action actually...