Bug#843146: /usr/bin/vim.gtk3: grey rectangle, no text shown or insertable

[Ph. Marek]

Package: vim-gtk3
Version: 2:8.0.0022-1
Severity: normal
File: /usr/bin/vim.gtk3

# vim.gtk3 -g -u NONE -U NONE -N
gives me a window, but where the text should be only a grey rectangle is 
visible. No text shown (expected version info etc.), no cursor, nothing 
insertable.

Console window gives these errors multiple times:

    (gvim:19090): Gtk-CRITICAL **: gtk_widget_set_size_request: assertion 'width >= -1' failed

    (gvim:19090): Gtk-CRITICAL **: gtk_distribute_natural_allocation: assertion 'extra_space >= 0' failed

    *** BUG ***
    In pixman_region32_init_rect: Invalid rectangle passed
    Set a breakpoint on '_pixman_log_error' to debug


-- Package-specific info:

--- real paths of main Vim binaries ---
/usr/bin/vi is /usr/bin/vim.gtk3
/usr/bin/vim is /usr/bin/nvim
/usr/bin/gvim is /usr/bin/vim.athena

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages vim-gtk3 depends on:
ii  libacl1              2.2.52-3
ii  libc6                2.24-5
ii  libcairo2            1.14.6-1+b1
ii  libgdk-pixbuf2.0-0   2.36.0-1
ii  libglib2.0-0         2.50.1-1
ii  libgpm2              1.20.4-6.2
ii  libgtk-3-0           3.22.2-1
ii  libice6              2:1.0.9-1+b1
ii  liblua5.2-0          5.2.4-1.1+b1
ii  libpango-1.0-0       1.40.3-2
ii  libpangocairo-1.0-0  1.40.3-2
ii  libperl5.24          5.24.1~rc3-3
ii  libpython3.5         3.5.2-6+b1
ii  libruby2.3           2.3.1-5+b1
ii  libselinux1          2.6-1
ii  libsm6               2:1.2.2-1+b1
ii  libtcl8.6            8.6.6+dfsg-1
ii  libtinfo5            6.0+20160917-1
ii  libx11-6             2:1.6.3-1
ii  libxt6               1:1.1.5-1
ii  vim-common           2:8.0.0022-1
ii  vim-gui-common       2:8.0.0022-1
ii  vim-runtime          2:8.0.0022-1

vim-gtk3 recommends no packages.

Versions of packages vim-gtk3 suggests:
ii  cscope            15.8b-1
ii  fonts-dejavu      2.37-1
ii  gnome-icon-theme  3.12.0-2
pn  vim-doc           <none>

-- no debconf information