Bug#731254: gedit: freezes when clicking Alt in non-english locale

[Federico Bruni]

Package: gedit
Version: 3.8.3-4
Severity: important

As soon as I press the Alt or the Ctrl button, gedit freezes.
The text cursor stops blinking and if I move the mouse cursor
over gedit window it disappears except when it's on the
title bar.

NOTE: this problem is not present when I run gedit in english:
LANG=C gedit

As you can see below, no plugin installed.
I cannot see any error on the terminale, so I'm having hard
time debugging it. I may try using gdb, but I cannot find
any gedit-debug package (or similar).

Can you please help?

Thanks
Federico

-- Package-specific info:
Active plugins:
  - @as []

No plugin installed in $HOME.

Module versions:
  - glib                  2.36.4
  - gtk+                  3.8.6
  - gtksourceview         3.8.2
  - pygobject             
  - enchant               
  - iso-codes             3.48


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 3.11-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gedit depends on:
ii  gedit-common               3.8.3-4
ii  gir1.2-peas-1.0            1.8.1-2
ii  gnome-icon-theme-symbolic  3.10.1-1
ii  gsettings-desktop-schemas  3.8.2-2
ii  iso-codes                  3.48-1
ii  libatk1.0-0                2.10.0-2
ii  libc6                      2.17-97
ii  libcairo-gobject2          1.12.16-2
ii  libcairo2                  1.12.16-2
ii  libenchant1c2a             1.6.0-10
ii  libgdk-pixbuf2.0-0         2.28.2-1
ii  libgirepository-1.0-1      1.36.0-2+b1
ii  libglib2.0-0               2.36.4-1
ii  libgtk-3-0                 3.8.6-1
ii  libgtksourceview-3.0-1     3.8.2-1
ii  libpango-1.0-0             1.36.0-1
ii  libpangocairo-1.0-0        1.36.0-1
ii  libpeas-1.0-0              1.8.1-2
ii  libx11-6                   2:1.6.2-1
ii  libxml2                    2.9.1+dfsg1-3
ii  python-gi-cairo            3.10.2-1
ii  python3-gi                 3.10.2-1
pn  python3:any                <none>

Versions of packages gedit recommends:
ii  yelp    3.10.1-1
ii  zenity  3.8.0-1

Versions of packages gedit suggests:
pn  gedit-plugins  <none>

-- no debconf information