D6212: Don't crash when deleted during network operations

[David Edmundson]

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

REPOSITORY
  R169 Kirigami

REVISION DETAIL
  https://phabricator.kde.org/D6212

To: leinir, #kirigami, mart, apol, davidedmundson
Cc: davidedmundson, plasma-devel, apol, mart
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