D7595: Skip reload when another reload is already in progress

[Henrik Fehlauer]

rkflx added a comment.


  I guess someone else should judge which is easier to read considering the full picture (I got confused by your `areWeReloading` naming, actually). I admit someone not familiar with `std::mutex` semantics would need to read the comment, but understanding a custom RAII wrapper is even harder.
  
  Could you suggest another reviewer?

REPOSITORY
  R223 Okular

REVISION DETAIL
  https://phabricator.kde.org/D7595

To: rkflx, #okular
Cc: aacid
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