Bug#794581: /usr/bin/kwin_x11: crashes when starting first window

[Arnout Boelens <A.M.P.Boelens@gmail.com>]

Package: breeze
Followup-For: Bug #794581

This problem seems to be related to breeze. I had the same kwin crash, but
after I downgraded all breeze packages using snapshot.debian.org, things are
working again.

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

Kernel: Linux 4.0.0-2-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
Init: systemd (via /run/systemd/system)

Versions of packages breeze depends on:
ii  breeze-cursor-theme                        4:5.3.2-3
ii  breeze-icon-theme                          4:5.3.2-3
ii  kde-style-breeze                           4:5.3.2-3
ii  kde-style-breeze-qt4                       4:5.3.2-3
ii  kwin-style-breeze                          4:5.3.2-3
ii  libc6                                      2.19-19
ii  libkf5configcore5                          5.12.0-1
ii  libkf5coreaddons5                          5.12.0-1
ii  libkf5i18n5                                5.12.0-1
ii  libkf5kcmutils5                            5.12.0-1
ii  libqt5core5a                               5.4.2+dfsg-5
ii  libqt5gui5                                 5.4.2+dfsg-5
ii  libqt5widgets5                             5.4.2+dfsg-5
ii  libstdc++6                                 5.1.1-14
ii  qml-module-qtquick-controls-styles-breeze  4:5.3.2-3

Versions of packages breeze recommends:
ii  kde-style-qtcurve  1.8.14-3+b2

Versions of packages breeze suggests:
pn  orion-gtk-theme  <none>

-- no debconf information