When Adding Custom Bindings, get ensure that "Multiple persistent shared references detected for Sequencer..."

Ensure:

Error    LogOutputDevice      Ensure condition failed: SequencerRefCount == 1 [Link Removed] [Line: 967] 

1. Error    LogOutputDevice      Multiple persistent shared references detected for Sequencer. There should only be one persistent authoritative reference. Found 3 additional references which will result in FSequencer not being released correctly.

Steps to Reproduce

Repro:

1. Open Sequencer
2. Add objects
3. Right-click on one of those objects
4. Open the Binding Properties sub-menu in the popup context menu
5. Choose to Convert to Binding
6. Deselect out of the window without selecting a new binding
7. Do this several times, clicking around this window
8. The ensure will happen
9. Later on, this causes a crash
10. Closing the Sequencer tab does not resolve the ensure or crash