User tag is not getting highlighted in IE8

• Type: Bug
• Status: Verified
• Resolution: Unresolved
• Affects Version/s: 2.1.X CE, 2.0.4 EE GA2
• Fix Version/s: None
• Component/s: Social Office Dashboard, Social Office Dashboard > Microblogs, Social Office Site > Site Look & Feel
• Labels: None
• Environment: Tomcat 7.0.27 + MySQL 5. IE8. Portal 6.1.20 EE GA2. ; Plugins 6.1.x EE GIT ID: e2729db7af521ed1342daf1cf4f78fc2a4c0a0c1b7.
• Fix Priority: 3
• Affects Portal Version/s:
  6.2.0 CE GA1, 6.1.30 EE GA3, 6.1.20 EE GA2

User tag is not getting highlighted in IE 8.

1. Add a new SO user
2. Add the new SO User as a connection
3. In Microblogs, type @
4. Type in the first letter of the new user's name and select the name from the dropdown
5. After the name is selected, hit space.

The user name should be highlighted but currently isn't.