Crash when deleting a folder with children in the Outliner in a large map

We've encountered a crash when trying to delete a folder after renaming one of its' children. I have attached a video and the callstack to this ticket. This might be related to [Link Removed] as the speed of the deletion/rename operation might be key to reproducing this.

1. Launch Editor
2. On the default map, add a sub-folder to either of the folders. Give it a unique name.
3. Add a sub-folder to the sub-folder you just added. Give it a unique name.
4. Do this again but add it to the last sub-folder. Again, give it a unique name.
5. Rename the last sub-folder, from step 4.
6. Delete the sub-folder from step 3.
7. Observe.