D11107: [KProtocolInfoFactory] Don't clear cache if it had just been built

[David Faure]

dfaure accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R241 KIO

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D11107

To: hein, #frameworks, broulik, dfaure
Cc: michaelh