Bug Report

• Package version(s): office-ui-fabric-react 5.17.0
• Browser and OS versions: All

Priorities and help requested (not applicable if asking question):

Are you willing to submit a PR to fix? (Yes, No) Yes

Requested priority: (Blocking, High, Normal, Low) Normal

Products/sites affected: (if applicable) Any site using 'search more' option with People Picker

Describe the issue:

Focus is lost when keying into search more option in suggestions

Actual behavior:

After keying into search more option and hitting Enter, focus is lost (unable to use arrow keys to select)

Expected behavior:

After keying into search more options and hitting Enter, user is able to use arrow keys to select