if ( solids.size() == 2 )
{
if ( solids == solidsBef )
- return theUndefID; //solids.contain( prevID ) ? solids.otherThan( prevID ) : theUndefID;
+ return solids.contain( prevID ) ? solids.otherThan( prevID ) : theUndefID; // bos #29212
}
return solids.oneCommon( solidsBef );
}