[ticket/12902] Remove duplicate entry in switch statement

PHPBB3-12902
Merge branch 'ticket/JeroenDeDauw/12902' into develop-ascraeus

* ticket/JeroenDeDauw/12902:
  [ticket/12902] Remove duplicate entry in switch statement
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12902] Remove duplicate entry in switch statement