Private Messaging portlet 'To' field autocomplete suggestion also searches by address data

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 3.X EE
• Fix Version/s: 2.1.X CE, 2.1.X EE, 3.X EE, 3.X CE, 3.1.0 CE
• Component/s: Social Office Dashboard, Social Office Dashboard > Messages
• Labels: None
• Affects Portal Version/s:
  Master

Steps to Reproduce
1. Install Social Office, then deploy the attached Private Messaging portlet.
2. Add some users, but make sure to put a city, street, and/or zip code.
3. Make all of those users Social Office enabled
4. In the black SO bar at the top, click on Messages
5. Click on New Message
6. In the To: field, type in the city, street, or zip code that you put for the users.
ACTUAL: You'll see that the appropriate name will appear. Same if you do with street or zip code.
EXPECTED: No names should show up, assuming that what you're typing doesn't contain name data.