D29224: [Task Manager] Avoid crash with QStringBuilder

[Kai Uwe Broulik]

broulik created this revision.
broulik added reviewers: Plasma, fvogt.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
broulik requested review of this revision.

REVISION SUMMARY
  The lambda returns a `QStringBuilder` which contains dangling references, see also QTBUG-47066
  
  BUG: 420452
  FIXED-IN: 5.18.5

TEST PLAN
  5.18
  Compiles

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D29224

AFFECTED FILES
  applets/taskmanager/plugin/smartlaunchers/smartlauncherbackend.cpp

To: broulik, #plasma, fvogt
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, ragreen, ZrenBot, ngraham, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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