Review Request 117701: Fix crashers in KStartupInfo on remove while iterating

[Martin Gräßlin]

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https://git.reviewboard.kde.org/r/117701/
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Review request for KDE Frameworks, Àlex Fiestas and Bhushan Shah.


Bugs: 332681
    https://bugs.kde.org/show_bug.cgi?id=332681


Repository: kwindowsystem


Description
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Fix crashers in KStartupInfo on remove while iterating

This is similar to the change ... just for more cases. If the API was
used with ::checkStartup it could happen that an item got removed from
the startups while iterating the list of startups. Thus the data
corrupted resulting in a crash when getting a similar crash.

In this case the code now uses erase instead of remove to have a valid
iterator.

BUG: 332681


Diffs
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  autotests/kstartupinfo_unittest.cpp 29fa320bc2c82e7e04a7322111bcdba44b7078c6 
  src/kstartupinfo.cpp 6a95ce2d2eb79abbfbd072fa922f458da30d37eb 

Diff: https://git.reviewboard.kde.org/r/117701/diff/


Testing
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See new unit tests which crash without the change. For people wanting to run the test: be warned it has the power to crash plasma-shell and kwin.


Thanks,

Martin Gräßlin

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