D29814: Fix segfault on no restart args

[Jiří Paleček]

jpalecek added a comment.


  In D29814#674730 <https://phabricator.kde.org/D29814#674730>, @dfaure wrote:
  
  > This question is still without an answer: "Can you explain how to trigger this crash in the first place? Which application triggers it?"
  
  
  That's because I don't know in which binary I have seen it. The patch itself is more than 6 months old and I don't remember what I was doing then. Not that I would care that much, IMHO the code should be resilient enough not to crash when someone does weird things with `QApplication`. After all, if apps had no bugs, there wouldn't be need for kcrash in the first place.
  
  The comment on one line says that `tst_QX11Info::startupId does QApplication app(argc, nullptr)` and this would certainly trigger it (should the following execution crash). That comment convinced me this usage is at least sort-of valid and so I wrote the patch.

REPOSITORY
  R285 KCrash

REVISION DETAIL
  https://phabricator.kde.org/D29814

To: jpalecek, #frameworks, dfaure
Cc: kde-frameworks-devel, LeGast00n, cblack, michaelh, ngraham, bruns
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