Could not add attachment to wiki page in page

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: Master
• Component/s: Collaboration > Wiki
• Labels: None
• Story Points: 0.25
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/64652

Steps to reproduce:

1. Add a wiki portlet to page
2. Click "This page is empty. Edit it to add some text." link
3. Add some content and add attachment

Actual result:
The uploading progress for attachment does not end, could not add attachment to wiki page. There is no issue when adding attachment from control panel > content > wiki.

Expected result:
Could add attachment to wiki page in page.