Importing vector training areas in g.gui.iclass (interactive)

[pshapley]

The 'g.gui.iclass' module in 7.6.1 64bit stable version (ubuntu 18.04) GUI interface does not allow 'import training areas from vector map' when I attempt this Grass will instantly crash. On the cmdline (non-interactive) module option I get the error below.

10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
Loading raster map <JPEG2000_composite@PERMANENT>...
Loading training map
<drainedbarepeat_signature@PERMANENT>...
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
10:49:01: Debug: ScreenToClient cannot work when toplevel
window is not shown
G__open(read): Unable to open '/home/xxxx/Documents/TempLoc
ation_DO_NOT_DELETE/PERMANENT/.tmp/xxxx
OptiPlex-7010/vector/trAreas226970/frmt': No such file or
directory

[neteler]

I can confirm this in G78:

# tested with NC zipcode map, just to trigger the error
g.gui.iclass
G__open(read): Unable to open '/home/mneteler/grassdata/nc_spm_08/user1/.tmp/oboe/vector/trAreas11066050/frmt': No such file or directory
G__open(read): Unable to open '/home/mneteler/grassdata/nc_spm_08/user1/.tmp/oboe/vector/trAreas11066050/frmt': No such file or directory

Segmentation fault (core dumped)

[mlennert]

Does ​https://github.com/OSGeo/grass/pull/1020 fix this issue ?