Categories are removed when bulk editing posts

[ricjcs]

When bulk editing posts, categories in posts are automatically removed and the category is set to "Uncategorized".

How to reproduce?

• Select some posts that have some categories defined
• Update posts in bulk edit mode, you don't need to make any changes, just update

What did I expect?
I expected the categories to remain in the posts as no changes were defined.

For an example, see the screenshots.

This behavior appeared in version 6.4

[ricjcs]

Bulk editing is presenting several problems. If I define a new category for posts that are in different categories, all categories are removed except the new one.

These situations must be related to ticket #11302, which is something I was hoping would be implemented, but it will be showing unexpected behavior.

[webcommsat]

During the scrub, I have had the same issue when I reproduce the above. Will upload screenshots later.

[peterwilsoncc]

A git bisect indicates this was introduced in [56712].

https://core.trac.wordpress.org/ticket/59837

https://core.trac.wordpress.org/ticket/59837 for 6.4 branch

[hellofromTonya]

After discussion in Make/Core slack, there's consensus to revert [56712]. Testing confirmed reverting resolves the issue. And a revert cleanly restores this area of the functionality back to its original form before 6.4.0.

[peterwilsoncc]

In 57093:

Quick/Bulk Edit: Prevent assigning posts to default categories during bulk edit.

During a bulk edit of posts with different categories, the categories for the edited posts would be reset to the default category: uncategorized by default.

This reverts [56712] to resolve the issue.

Props peterwilsoncc, hellofromtonya, jorbin.
Fixes #59837.
See #11302.

[hellofromTonya]

[57093] LGTM for backporting to 6.4 branch.

[peterwilsoncc]

In 57094:

Quick/Bulk Edit: Prevent assigning posts to default categories during bulk edit.

During a bulk edit of posts with different categories, the categories for the edited posts would be reset to the default category: uncategorized by default.

This reverts [56712] to resolve the issue.

Merges [57093] to the 6.4 branch.

Props peterwilsoncc, hellofromtonya, jorbin.
Fixes #59837.
See #11302.

Merged in r57093 / ​https://github.com/WordPress/wordpress-develop/commit/2bf4a27d5ae2bf4005b438fbc86fe76a6d45a7c6

Merged in r57093 / ​https://github.com/WordPress/wordpress-develop/commit/2bf4a27d5ae2bf4005b438fbc86fe76a6d45a7c6

Backported in r57094 / ​https://github.com/WordPress/wordpress-develop/commit/373e364894205bf59461ab8ee7ace89dc6b60fc3

[ricjcs]

Thank you very much for the quick fix.