try to edit channel in kaffeine 2.0.17 gives a crash

[Peter Schlaf <peter.schlaf@xxxxxx>]

Hello,

right-click on certain channels in the dvb-channel list in kaffeine
2.0.17 and selecting "edit" crashes the program without opening the
channel-editor.

gdb output says:

   Thread 1 "kaffeine" received signal SIGSEGV, Segmentation fault.
   0x00005555555a78c6 in DvbChannelEditor::DvbChannelEditor
   (this=0x5555574fce60, model_=<optimized out>, channel_=...,
   parent=<optimized out>)
        at
   /usr/src/debug/kaffeine-2.0.17-lp151.1.1.x86_64/src/dvb/dvbchanneldialog.cpp:961
   961                     QString text = QString::number(it.first);
   (gdb)


CU