The dropdown list doesn't disappear automatically on IE10.

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE RC4
• Fix Version/s: 6.2.0 CE RC5
• Component/s: Frontend Infrastructure, Legacy, Legacy > Control Panel menu
• Labels:
  • QA-R
• Environment: Tomcat 7.0 + MySQL 5. Internet Explorer 10. Portal ee-6.2.x EE GIT ID: 131deda6f4bd89303f7ae6af84baefb22f1fead6.
• Story Points: 5
• Fix Priority: 4
• Browsers:
  Internet Explorer 10
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/14660

This only affects IE10 and only for the ee-6.2.x branch.
Steps to reproduce:

1. Start liferay bundle with a clean database.
2. Go to control panel.
3. Click Web Content under Content.
4. Click at Add/ Sort By/ Manage.
5. The same thing happens in D&M and Categories.

Expected result:
The dropdown list can be disappeared automatically when changing the operation.

Actual result:
The dropdown list doesn't disappear automatically when changing the operation. See the Attach file.