It seems like some components that filter their children might end up getting item.type equal to undefined.
I have seen this happen when a component that applies a filter contains children separated by a space on the same line.
Possible solution
Replace all instances of item.type.name === ComponentX.name with a more robust check which checks item.type && item.type.name && item.type.name === ComponentX.name instead. This will safeguard against this particular problem and possibly others in the future.
It seems like some components that filter their
childrenmight end up gettingitem.typeequal toundefined.I have seen this happen when a component that applies a filter contains children separated by a space on the same line.
Possible solution
Replace all instances of
item.type.name === ComponentX.namewith a more robust check which checksitem.type && item.type.name && item.type.name === ComponentX.nameinstead. This will safeguard against this particular problem and possibly others in the future.