D21628: Avoid container detach in a few places

[Stefan Brüns]

bruns created this revision.
bruns added reviewers: Baloo, ngraham, astippich, poboiko.
Herald added projects: Frameworks, Baloo.
Herald added a subscriber: kde-frameworks-devel.
bruns requested review of this revision.

TEST PLAN
  make

REPOSITORY
  R293 Baloo

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D21628

AFFECTED FILES
  src/engine/documenturldb.cpp
  src/engine/documenturldb.h
  src/file/basicindexingjob.cpp
  src/file/fileindexerconfig.cpp

To: bruns, #baloo, ngraham, astippich, poboiko
Cc: kde-frameworks-devel, LeGast00n, domson, ashaposhnikov, michaelh, astippich, spoorun, ngraham, bruns, abrahams
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