`kde-open --interactive` crashes

gistfile1.txt

$ xdg-open --version
xdg-open 1.1.0 rc1
$ kde-open --version
Qt: 4.8.6
KDE Development Platform: 4.13.2
KIO Client: 2.0

$ xdg-open 'https://bugs.freedesktop.org/'
QWidget: Cannot create a QWidget when no GUI is being used
/usr/bin/xdg-open: line 513:  3830 Aborted                 (core dumped) kde-open --noninteractive "$1"

$ kde-open --noninteractive 'https://bugs.freedesktop.org/'
QWidget: Cannot create a QWidget when no GUI is being used
Aborted (core dumped)

$ kde-open 'https://bugs.freedesktop.org/'
$ echo $?
0

kde-open_backtrace.txt

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Reading symbols from kde-open...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/kde-open --noninteractive http://example.com
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".

Program received signal SIGABRT, Aborted.
0x00007ffff598dd67 in raise () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007ffff598dd67 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff598f118 in abort () from /usr/lib/libc.so.6
#2  0x00007ffff6d319ff in qt_message_output(QtMsgType, char const*) () from /usr/lib/libQtCore.so.4
#3  0x00007ffff6d31b89 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007ffff6d32394 in qFatal(char const*, ...) () from /usr/lib/libQtCore.so.4
#5  0x00007ffff622f6bc in QWidgetPrivate::init(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/libQtGui.so.4
#6  0x00007ffff622f8e4 in QWidget::QWidget(QWidget*, QFlags<Qt::WindowType>) () from /usr/lib/libQtGui.so.4
#7  0x00007ffff558ff55 in KXMessages::KXMessages(char const*, QWidget*) () from /usr/lib/libkdeui.so.5
#8  0x00007ffff5530f30 in KStartupInfo::sendStartup(KStartupInfoId const&, KStartupInfoData const&) () from /usr/lib/libkdeui.so.5
#9  0x00007ffff7a7901f in ?? () from /usr/lib/libkio.so.5
#10 0x00007ffff7a7951b in ?? () from /usr/lib/libkio.so.5
#11 0x00007ffff7a79fc7 in KRun::run(KService const&, KUrl::List const&, QWidget*, bool, QString const&, QByteArray const&) () from /usr/lib/libkio.so.5
#12 0x00007ffff7a7bf63 in KRun::run(QString const&, KUrl::List const&, QWidget*, QString const&, QString const&, QByteArray const&) () from /usr/lib/libkio.so.5
#13 0x00007ffff7a7c0b3 in KRun::KRunPrivate::runExecutable(QString const&) () from /usr/lib/libkio.so.5
#14 0x00007ffff7a7c932 in KRun::init() () from /usr/lib/libkio.so.5
#15 0x00007ffff7a73eb0 in KRun::slotTimeout() () from /usr/lib/libkio.so.5
#16 0x00007ffff6e5230a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x00007ffff6e564c1 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#18 0x00007ffff61def0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007ffff61e548d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007ffff6e3e58d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x00007ffff6e6dd63 in ?? () from /usr/lib/libQtCore.so.4
#22 0x00007ffff6e6b071 in ?? () from /usr/lib/libQtCore.so.4
#23 0x00007ffff276fb84 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007ffff276fdc8 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0x00007ffff276fe6c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007ffff6e6b2a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#27 0x00007ffff6e3d15f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x00007ffff6e3d455 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00007ffff6e42719 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#30 0x0000000000403e33 in _start ()
(gdb) quit
A debugging session is active.

        Inferior 1 [process 4943] will be killed.

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