Adding a tag with an invalid character causes an exception

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 5.1 EE SP4 (5.1.7), 5.2 EE SP2 (5.2.6)
• Fix Version/s: 5.1 EE SP5 (5.1.8), 5.2 EE SP3 (5.2.7)
• Component/s: Legacy > Control Panel menu, WCM > Tags
• Labels: None
• Environment: All

Adding a tag with an invalid character (ie. & * @ < > { }) causes an exception. The users should be presented with an error message indicating that the name of the tag is invalid.