Description of problem:
After a fresh install of Fedora 21 Alpha Workstation, I clicked the refresh button in the updates page to check for updates. The spinner ran for about a minute, then Software reported that my computer was up-to-date, which was such an unbelievable lie than I ran pkmon and saw that PackageKit was in fact downloading updates at that very moment. I left Software open until the download finished ten minutes later, whereupon Software crashed immediately after displaying a notification about new updates.

Version-Release number of selected component:
gnome-software-3.13.91-1.fc21

Additional info:
reporter:       libreport-2.2.3
backtrace_rating: 3
cmdline:        /usr/bin/gnome-software --gapplication-service
crash_function: valid_locale_name
executable:     /usr/bin/gnome-software
kernel:         3.16.1-301.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 valid_locale_name at findlocale.c:88
 #1 _nl_find_locale at findlocale.c:142
 #2 _IO_obstack_xsputn at obprintf.c:76
 #3 _IO_un_link at genops.c:89
 #4 _IO_default_finish at genops.c:703
 #5 ??
 #6 ??
 #7 ??
 #8 ??
 #9 ??