Bugfix: if a puzzle has overridden 'getCubitFaceMap()' method (like for example Container, in order to make internal walls colorful) then before this might have screwed up computation of the solvedGroups. Correct that.
Bugfix: if a puzzle has overridden 'getCubitFaceMap()' method (like for example Container, in order to make internal walls colorful) then before this might have screwed up computation of the solvedGroups. Correct that.