Changes the title of an Issue, returns the created TitleChangedEvent or null if the title was not changed. Checks the authorization status
Return
the saved created TitleChangedEvent or null if no event was created
Parameters
used to check for the required permission
defines the new title and of which issue to change it
Changes the title of an issue at atTime as byUser and adds a TitleChangedEvent to the timeline. Creates the event even if the title was not changed. Only changes the title if no newer timeline item exists which changes it. Does not check the authorization status. Does neither save the created TitleChangedEvent nor the issue. It is necessary to save the issue or returned TitleChangedEvent afterwards.
Parameters
the Issue where the title should be changed
the old title
the new title
the point in time when the modification happened, updates Issue.lastUpdatedAt if necessary
the User who caused the update, updates Issue.participants if necessary
currently unused