[Bug 290752] New: crash when clearing folder quicksearch field

[Martin Koller]

https://bugs.kde.org/show_bug.cgi?id=290752

           Summary: crash when clearing folder quicksearch field
           Product: kmail2
           Version: 1.99.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: kollix at aon.at


Version:           1.99.0 (using Devel) 
OS:                Linux

I start kmail, Enter the word "Junk" in the folder quicksearch field, then
click on the "clear" icon at the right side of the filter field -> crash

#8  0xb6860b07 in QSortFilterProxyModel::setFilterWildcard(QString const&) ()
from /usr/lib/libQtGui.so.4
#9  0xb4ff85f0 in MailCommon::FolderTreeWidgetProxyModel::setFilterFolder
(this=0x85d6050, filter=...) at
/usr/src/debug/kdepim-4.7.97/mailcommon/foldertreewidgetproxymodel.cpp:173
#10 0xb4fe52bf in MailCommon::FolderTreeWidget::slotFilterFixedString
(this=0x8156078, text=...) at
/usr/src/debug/kdepim-4.7.97/mailcommon/foldertreewidget.cpp:185
#11 0xb4fe550f in MailCommon::FolderTreeWidget::qt_static_metacall
(_o=0x8156078, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbf94a788) at
/usr/src/debug/kdepim-4.7.97/build/mailcommon/foldertreewidget.moc:60
#12 0xb6d410ef in QMetaObject::activate(QObject*, QMetaObject const*, int,
void**) () from /usr/lib/libQtCore.so.4
#13 0xb669cf35 in QLineEdit::textChanged(QString const&) () from
/usr/lib/libQtGui.so.4
#14 0xb669d2f7 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb6d410ef in QMetaObject::activate(QObject*, QMetaObject const*, int,
void**) () from /usr/lib/libQtCore.so.4
#16 0xb694f9e5 in QLineControl::textChanged(QString const&) () from
/usr/lib/libQtGui.so.4
#17 0xb66a25ea in QLineControl::finishChange(int, bool, bool) () from
/usr/lib/libQtGui.so.4
#18 0xb66a38a9 in QLineControl::del() () from /usr/lib/libQtGui.so.4
#19 0xb669ae14 in QLineEdit::del() () from /usr/lib/libQtGui.so.4
#20 0xb76405ea in KLineEdit::mouseReleaseEvent(QMouseEvent*) () from
/usr/lib/libkdeui.so.5

Reproducible: Always

Steps to Reproduce:
see above


Expected Results:  
no crash

OS: Linux (i686) release 2.6.34.10-0.4-desktop
Compiler: gcc
openSuse 12.1, KDE-4.8RC2

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