DM - No error message when moving a document to a folder that has an existing document of the same name

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 Beta 8
• Fix Version/s: 7.0.0 CE RC1
• Component/s: ~ [Archived] Frontend Infrastructure
• Labels:
  • QA-AUTOMATION
  • sennajs
• Fix Priority: 4
• Sprint: Yuzu Tea
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/36887
• QA Test Name:
  • PGDocumentsandmedia#MoveFolderDocumentDuplicateToFolder

Steps to reproduce:

1. Add the Documents and Media portlet to a page
2. Add a folder, Folder 1, with a basic document titled "Document"
3. Add a 2nd folder, Folder 2, with a basic document titled "Document"
4. Navigate into Folder 2 and click on the vertical ellipsis of the document "Document"
5. Click Move > Select > Choose folder 1
6. Click on Move

Expected result: A user should be alerted with the following:

The folder you selected already has an entry with this name. Please select a different folder.

Actual result: There are no alerts, the document is not moved, and there are JS errors:

"NetworkError: 490  - http://localhost:8080/group/guest/~/control_panel/manage?p_p_id=com_liferay_document_library_web_portlet_DLAdminPortlet&p_p_lifecycle=1&p_p_state=maximized&p_p_mode=view&_com_liferay_document_library_web_portlet_DLAdminPortlet_javax.portlet.action=%2Fdocument_library%2Fmove_entry&_com_liferay_document_library_web_portlet_DLAdminPortlet_mvcRenderCommandName=%2Fdocument_library%2Fmove_entry"

Navigation error for [screen_2] (Error: Invalid response status code. To customize which status codes are valid, overwrite `screen.isValidResponseStatusCode` method.)

Please see attached gif.
Reproduced on:
Tomcat 8.0.30 + MySQL 5.6 Portal master GIT ID: 36fe33b57a98cdee1df7a4c0df2d322ce42706ac.