githuber-md Bug: Bulk editing posts converts markdown to HTML in post_content

Describe the bug

We had 40 posts, all with markdown, that was created by user1. I wanted to re-assign all 40 posts to user2. So I selected 40 posts, and used "Edit" dropdown option to make bulk edits. I selected user2, and hit save. I went inside a post to make some edits, but I realized that markdown for all 40 posts was converted to HTML.

I went into database and checked contents of post_content_filtered column, everything is HTML. There was no markdown left.

I repeated this with test posts. It happens every time. It doesn't matter what change is made to the posts. The bulk editing action converts markdown to HTML.

To reproduce

Steps to reproduce the behavior:

Create a post with markdown, save as draft or publish, doesn't matter.
Go to All Posts, select this post by ticking checkbox.
In the dropdown, select "Edit" and click "Apply".
Make a change, doesn't matter what. Assign to category, change author, etc.
Click Save.
Open your post again and check markdown textarea. It should be HTML now, no markdown.

Expected behavior

Performing bulk edits should not convert markdown to HTML.

Screenshots

Server environment

WordPress: 5.2.1
WP Githuber MD plugin version 1.11.4
PHP version 7.3.5

User environment

OS: Win 10
Browser: Chrome

Additional context

I think what might be happening, for some reason post_content overrides post_content_filtered when performing bulk edit.

Jun 06 '19 14:06 viktorix

Thanks for your feedback. I will look into it.

Jun 07 '19 13:06 terrylinooo

Same here, in my case what I did was to assign categories, and now I've realized everything is in html

Sep 13 '19 12:09 kuworking

Same here, sorry for the spam :)

Apr 14 '20 18:04 stuehmer

This happens to me with DocPress posts in an unpredictable way. Whenever I go back to a post, sometimes it's in markdown and others in HTML. This wouldn't be such a big issue if not for #79 which augments the problem.