1. Create BP Parent
2. Add String member variable. Call it StringA. Set value "StringInParent". Compile and save parent.
3. Create BP Child, based on parent.
4. Set value of StringA in Child "StringInChild". Compile and safe child.
5. Rename StringA in Parent, lets call it StringB. Compile and safe Parent.
Notice the Child BP is not dirty. Is it a bug?
6. Restart Editor. Notice, that the value of StringB in Child BP is "StringInParent".
EXPECTED: The value of StringB in Child BP is "StringInChild"