Fix incorrect featured image

[phpbits]

Description of the Change

This PR fixes the issue with the incorrect featured image when pushing a post.

Closes #1198

How to test the Change

• Create a post and insert at least one image in the content
• Assign a featured image different from the one you've inserted
• Publish the post
• Distribute to any site
• Check if the distributed post has the correct image

Changelog Entry

Fixed - Bug fix

Credits

Props @phpbits

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.

[Sidsector9]

@phpbits I'm unable to test the PR because I'm unable to reproduce the issue on the develop branch.

Please watch the video below:

pull-1254.mov

[phpbits]

@Sidsector9 Try unchecking the "Draft" option. Let me know how it goes. Thanks!

[faisal-alvi]

I made several attempts to reproduce the issue in the same MU network but was unsuccessful in the develop branch. After internal discussion, I am approving this PR. The changes look good and have tested well in both internal (same MU network) and external connections.