After renaming a user, JIRA can't display correct user name

Description

Hello,

after we renamded a user, from "support" to "oc-service", the plugin "JIRA Email This Issue" can't solve the correct name. It says: user doesn't exist: support.
If I go with my mouse over the userlink, then there is in the link the old username -> https://support.orderbase.de/secure/ViewProfile.jspa?name=support
(See my attached picture).
Can you tell me how we can solve the problem?

Environment

None

Preliminary Test Cases

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Assignee

Tibor Hegyi

Reporter

Andreas Scharlau

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Priority

Major
Configure