Bug#556905: balsa: Same here with a particular mail

[Nicolas Patrois]

Package: balsa
Version: 2.4.12-2+b1
Followup-For: Bug #556905

Dear Maintainer,

I retreaved my meils and one particular mail hangs completely balsa. I can’t even use Balsa, it hangs on startup.
I can’t delete this mail, I can’t move it, I can’t do anything.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.16.0-4-686-pae (SMP w/3 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages balsa depends on:
ii  gconf-service               3.2.6-3
ii  gnome-icon-theme            3.12.0-1
ii  libbonobo2-0                2.32.1-3
ii  libc6                       2.21-6
ii  libcairo2                   1.14.6-1
ii  libcanberra-gtk0            0.30-2.1
ii  libcanberra0                0.30-2.1
ii  libcompfaceg1               1:1.5.2-5
ii  libenchant1c2a              1.6.0-10.1
ii  libesmtp6                   1.0.6-4+b1
ii  libgconf-2-4                3.2.6-3
ii  libgdk-pixbuf2.0-0          2.32.3-1
ii  libglib2.0-0                2.46.2-3
ii  libgmime-2.6-0              2.6.20-1+b1
ii  libgnome-2-0                2.32.1-5
ii  libgnome-keyring0           3.12.0-1+b1
ii  libgnomeui-0                2.24.5-3
ii  libgpgme11                  1.6.0-1
ii  libgssapi-krb5-2            1.13.2+dfsg-4
ii  libgtk2.0-0                 2.24.29-1
ii  libgtksourceview2.0-0       2.10.5-2
ii  libgtkspell0                2.0.16-1.1
ii  libjavascriptcoregtk-1.0-0  2.4.9-3
ii  libldap-2.4-2               2.4.42+dfsg-2+b1
ii  libnm-glib4                 1.0.10-1
ii  libnotify4                  0.7.6-2
ii  liborbit-2-0                1:2.14.19-1+b1
ii  libpango-1.0-0              1.38.1-1
ii  libpangocairo-1.0-0         1.38.1-1
ii  libsqlite3-0                3.9.2-1
ii  libssl1.0.2                 1.0.2e-1
ii  libunique-1.0-0             1.1.6-5
ii  libwebkitgtk-1.0-0          2.4.9-3
ii  libxml2                     2.9.3+dfsg1-1
ii  zlib1g                      1:1.2.8.dfsg-2+b1

Versions of packages balsa recommends:
ii  aspell  0.60.7~20110707-3+b1
ii  ispell  3.4.00-4
ii  yelp    3.16.1-1

Versions of packages balsa suggests:
ii  ca-certificates  20160104
pn  lbdb             <none>

-- no debconf information