Typing in “@” in the Smart Checklist input box will pull out the list of Jira users on your instance that you can select from and add to a checklist item.
You type:
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You get:
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Starting from v6.3.0, non-ASCII characters are supported in the checklist assignee:
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If the username differs from the full name - then the Jira username is saved per checklist item displaying the full name in rendered mode.
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