Bug#709936: pavucontrol won't start due to GTK Error

[Timo]

Package: pavucontrol
Version: 1.0-1
Severity: important

Latest upgrade made pavucontrol unstartable on my system. The Error is:
pavucontrol: symbol lookup error: /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1: undefined symbol: gtk_level_bar_get_type


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.8-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages pavucontrol depends on:
ii  libatk1.0-0              2.8.0-2
ii  libatkmm-1.6-1           2.22.7-1
ii  libc6                    2.17-3
ii  libcairo-gobject2        1.12.14-4
ii  libcairo2                1.12.14-4
ii  libcairomm-1.0-1         1.10.0-1
ii  libcanberra-gtk3-0       0.28-6
ii  libcanberra0             0.28-6
ii  libgcc1                  1:4.8.0-7
ii  libgdk-pixbuf2.0-0       2.28.1-1
ii  libglib2.0-0             2.36.1-2build1
ii  libglibmm-2.4-1c2a       2.36.2-1
ii  libgtk-3-0               3.8.2-1
ii  libgtkmm-3.0-1           3.8.1-1
ii  libpango1.0-0            1.32.5-5
ii  libpangomm-1.4-1         2.28.4-1
ii  libpulse-mainloop-glib0  2.0-6.1
ii  libpulse0                2.0-6.1
ii  libsigc++-2.0-0c2a       2.2.10-0.2
ii  libstdc++6               4.8.0-7

pavucontrol recommends no packages.

pavucontrol suggests no packages.

-- no debconf information