D20079: Fix crash due to using an attribute from a collection that went out of scope

[David Faure]

dfaure added a comment.


  Well, it's a copy of that collection, and the recent const/non-const change makes us detach that copy.
  
  The alternative fix is to make that parentCollection variable const, then it will work like before. But it still reads to me like we're pointing into something that went out of scope (although with the implicit sharing it won't be the case anymore).

REPOSITORY
  R170 Akonadi Calendar

BRANCH
  Applications/19.04

REVISION DETAIL
  https://phabricator.kde.org/D20079

To: dfaure, dvratil, winterz
Cc: kde-pim, dvasin, rodsevich, winterz, vkrause, mlaurent, knauss, dvratil
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