You can't. JIRA doesn't have any lock function built into it
Your could move the edits into the workflow, and use restrictions to effectively "lock" the issue to the current editor, but this is messy, complex and often leaves you with hanging locks because your users often don't complete their edits.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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