Review Request 122385: Fixing warnings in Cantor when switching tabs

[Minh Ngo]

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https://git.reviewboard.kde.org/r/122385/
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Review request for KDE Edu, Alexander Rieder and Filipe Saraiva.


Bugs: 343700
    http://bugs.kde.org/show_bug.cgi?id=343700


Repository: cantor


Description
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After switching tabs, some QAction has been removed from the bar and another appears, but we didn't do unplugActionList before that leads to memory leaks and warnings.


Diffs
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  src/cantor.cpp 5194fc7 

Diff: https://git.reviewboard.kde.org/r/122385/diff/


Testing
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1. Create two tabs
2. Do Alt + 1, Alt + 2 several times


Thanks,

Minh Ngo

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