Segfault caused by "Hook qt model for country"

[Gaetan Bisson]

[2017-10-04 02:42:58 +0300] Lubomir I. Ivanov:
> Gaetan, can you please try applying the attached patch on the latest
> master for reference?

Sure. With that patch I get a segfault:

	Thread 1 "subsurface" received signal SIGSEGV, Segmentation fault.
	0x00005555557ab79d in DiveTripModel::columnWidth(int) ()
	(gdb) bt
	#0  0x00005555557ab79d in DiveTripModel::columnWidth(int) ()
	#1  0x000055555571fb96 in DiveListView::setupUi() ()
	#2  0x000055555571fdfe in DiveListView::reload(DiveTripModel::Layout, bool) ()
	#3  0x000055555566168d in MainWindow::recreateDiveList() ()
	#4  0x000055555566ab21 in MainWindow::refreshDisplay(bool) ()
	#5  0x000055555566cb56 in MainWindow::loadFiles(QStringList) ()
	#6  0x000055555565d425 in main ()

If I start with an empty subsurface profile then all is fine until I add
a dive to the list at which point the segfault happens.

Sorry I cannot help much more now. I'll try to clear some time tonight
(in about six hours) to try and actively investigate this...

Cheers.

-- 
Gaetan