As: a Jira user, I sometimes

Need to: roll back or merge an accidental change to the description field in a ticket

So that: we don't lose the work we've done.

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This is nicely described here: https://community.atlassian.com/t5/Jira-Software-questions/Can-I-roll-back-a-Jira-ticket-to-an-earlier-version-as-shown-in/qaq-p/1648003#U2280270

It is a lifesaver having the ticket history, but when there are tables with hyperlinks and formatting in, its very hard to "DIFF" the history so that you can do a Merge.    And you can't just copy paste the history text back into the description field .