Segfault caused by "Hook qt model for country"

[Gaetan Bisson]

Hi,

I'm building the latest git snapshot of Subsurface on Arch Linux (we've
got qt-5.9.1) and the latest commit "Hook qt model for country"
(d5ab03ef4e84820f9530152dbf4ffc29dec6e652) causes a segfault.

Building goes well but then when running the binary I get:

	Thread 1 "subsurface" received signal SIGSEGV, Segmentation fault.
	0x0000555555721d87 in DiveListView::DiveListView(QWidget*) ()
	(gdb) bt
	#0  0x0000555555721d87 in DiveListView::DiveListView(QWidget*) ()
	#1  0x000055555566f07e in MainWindow::MainWindow() ()
	#2  0x000055555566858d in init_ui() ()
	#3  0x0000555555666f9d in main ()

I've bisected this segfault to that precise commit. I have no idea how
to debug this further but will be happy to help in any way I can.

Cheers.

-- 
Gaetan