Issue Summary

After selecting a Conference Bridge for use in an Incident Rule, there is no option to clear that selection out, rather the only options available are to select another existing bridge

Steps to Reproduce

1. Open the Edit UI for an Incident Rule
2. Select a Conference Bridge
3. No option present to remove this value

Expected Results

The selection should have an option to be cleared

Actual Results

No option is available to remove the value once selected

Workaround

No workarounds available based on discussion with SSE