[ticket/12766] Event exporter does not like RCx as version

PHPBB3-12766
Merge pull request #2650 from PayBas/ticket/12766

[ticket/12766] Event exporter does not like RCx as version

* PayBas/ticket/12766:
  [ticket/12766] Event exporter does not like RCx as version
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12766] Event exporter does not like RCx as version