Unable to edit an event to repeat monthly and yearly

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.1.1 CE GA2, 6.1.10 EE GA1, 6.2.0 CE M2
• Fix Version/s: 6.1.1 CE GA2, 6.1.20 EE GA2, 6.2.0 CE M2
• Component/s: Calendar, Collaboration, Legacy, Legacy > Control Panel menu
• Labels: None
• Environment: Tomcat 7 + MySQL 5. 6.1.x GIT ID: 6f65561a510cc054dbb4184bfaad201c465141e5. ; Tomcat 7 + MySQL 5. 6.2.x GIT ID: 04e4f5c0c063f3b4fffb7b01b73a71bb59683c82.
• Fix Priority: 4
• Caused by: Feature/improvement was not complete
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/4007
• Bug Type: Regression Bug

Steps to reproduce:
1. Navigate to Control Panel > Calendar > Add Event
2. Enter in "Test" in title field and click Save
3. Click Actions > Edit near Event
4. Under Repeat, select the radio button for "Monthly" and select the radio button "End by" and click Save

You will get an error in the console and it becomes unresponsive. (See attachment) This also occurs with repeating yearly date and repeating yearly day events.