Document and media images get lost after editing a web content

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 Beta 5
• Fix Version/s: 7.0.0 Beta 6
• Component/s: WCM, WCM > Web Content Administration
• Labels: None
• Story Points: 1
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/35202

Steps to reproduce:

1. Add a web content structure with an image field
2. Add a template for the previous structure
3. Add a web content with the previous structure
4. Add an image in the image field using the Document and Media tab (use an existing image document or upload a new one)
5. Edit the web content and publish without performing any changes
6. Edit the web content again and preview the image

Expected behavior: The image is previewed
Current behavior: The image is not visible