Acceptance Criteria:
- If a username has been changed, how can we only show the result for the new name rather than the old name in searching the participant list?
Acceptance Criteria:
Renames are already supported and have always been, TTBOMK. See an example in https://meta.wikimedia.beta.wmflabs.org/w/index.php?title=Special:EventDetails/226&tab=ParticipantsPanel, where I registered with the account "Daimona test rename", then renamed it to "Daimona test 2". The new name is showing in the list and can be searched.