Cannot remove overrided interface with in a child after it has been removed from the parent

If a user preforms the following order of a events it can cause an interface to becomes impossible to remove.

• Create actor
• Create interface
• Add interface to actor
• Create child based on actor
• Override the interface in child
• Remove interface from parent
• Inter face cannot be removed from child

1. Download attached project
2. Open project
3. Open child blueprint
4. Try to delete the interface
5. Notice that it cannot be removed