Documents and Media - Error message appears after successfully deleting document within folder

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 Alpha 1
• Fix Version/s: 7.0.0 Alpha 1
• Component/s: Documents & Media, Media Gallery widget
• Labels:
  • QA-AUTOMATION
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/30540

Steps to reproduce:

1. Add a Media Gallery portlet to the site page
2. Go to portlet configuration
3. Check "Show Actions, Show Folder Menu, Show Navigation Links, Show Search" and save
4. Go back to Media Gallery portlet
5. Add a folder in the portlet
6. Click into the folder
7. Add a media > basic document
8. Click back into the folder with the added document
9. Click "Move to the Recycle Bin"

Expected result:
The document is deleted, and the recycle bin success message appears.

Actual result:
The document is deleted, but two error messages appear:

 Your request failed to complete 

 The folder could not be found. 

This happens in the DM portlet as well.

Reproduced on:
Tomcat 7.0.62 + MySQL 5.5.
Portal master GIT ID: 99d78bb2556d4efac8f823c69f518475655c1e8b