ycnh - Header Text Goes Here - How do I roll back to a previous version of a post?

Click on the post.
Seeing it is messed up, you can click history just above and to the right of the title of the post:

Look for the date when the post was last working successfully
Click the date part of that selection
Verify it looks correct when you view that page
Then hit Edit on that version of the page
Click Save at the bottom of the page.
If you follow the above and save it, it returns you to whatever previous version you wanted.

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