Steps to reproduce:
1. Navigate to Admin -> Configure Notifications -> Configure Event Notifications
2. Edit an existing rule or create a new one. Choose a UEI and click Next to get to the buildRule.jsp step.
3. In the "Current Rule" input field, enter a valid IPLIKE expression using IPv6. Example:
ipaddr IPLIKE 2001:::::::*
4. Click either "Validate rule results" or "Skip rule validation"
Expected results: Wizard moves on to next step
Actual results: Wizard redirects back to buildRule.jsp step with a message indicating the rule is invalid