Category filter doesn't display any collection when trying to select one

• Type: Impedibug
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: None
• Component/s: Fragment Administration, Out of the box Fragments > Collection Display Fragment
• Labels: None
• Git Pull Request: https://github.com/liferay-echo/liferay-portal/pull/5605

Steps to reproduce

1. Add a vocabulary and some categories
2. Add a content page
3. Enable collection filter
4. Add a collection and configure it to show "Recent content"
5. Add a collection filter
6. Configure the type of filter to categories and select the vocabulary 
7. Publish
8. Click on the filter to display the category dropdown

Expected result

There are some categories to be chosen in the filter

Actual result

There isn't any category