Bug#696354: plasma-desktop: eats up /var/tmp with plasma_theme_*.kcache files > 80M each

[Eloi Notario <entfe001@gmail.com>]

Package: plasma-desktop
Version: 4:4.8.4-5
Severity: important

While updating I've found my root filesystem full. After searching for 
space to free, I found on /var/tmp/kdecache-${user} up to 11 files with 
size 84213856 each named "plasma_theme_${themename}.kcache". A few days 
ago I was testing several themes, however I didn't expect that for each 
one I tried it left a file of this considerable size. Globally, it eat 
up to 0.9G of disk space which was not reclaimed.

I don't know what are these files for, but given their size I believe 
they either should be put in /tmp if there are no longer necessary 
after reboot, or instead clean up the files for themes other than the 
one currently in use. I don't believe all of them are necessary at the 
same time.

Important because I'm not sure if it deserves an RC status, please
upgrade or downgrade.

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

Kernel: Linux 3.2.0-4-686-pae (SMP w/2 CPU cores)
Locale: LANG=ca_ES.UTF-8, LC_CTYPE=ca_ES.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages plasma-desktop depends on:
ii  kde-runtime               4:4.8.4-2
ii  kde-wallpapers-default    4:4.8.4-1
ii  libc6                     2.13-37
ii  libkactivities6           4:4.8.4-1
ii  libkcmutils4              4:4.8.4-4
ii  libkdecore5               4:4.8.4-4
ii  libkdeui5                 4:4.8.4-4
ii  libkephal4abi1            4:4.8.4-5
ii  libkfile4                 4:4.8.4-4
ii  libkidletime4             4:4.8.4-4
ii  libkio5                   4:4.8.4-4
ii  libknewstuff3-4           4:4.8.4-4
ii  libktexteditor4           4:4.8.4-4
ii  libkworkspace4abi1        4:4.8.4-5
ii  libplasma3                4:4.8.4-4
ii  libplasmagenericshell4    4:4.8.4-5
ii  libqt4-dbus               4:4.8.2+dfsg-2
ii  libqt4-xml                4:4.8.2+dfsg-2
ii  libqtcore4                4:4.8.2+dfsg-2
ii  libqtgui4                 4:4.8.2+dfsg-2
ii  libsolid4                 4:4.8.4-4
ii  libstdc++6                4.7.2-4
ii  libtaskmanager4abi3       4:4.8.4-5
ii  libx11-6                  2:1.5.0-1
ii  libxext6                  2:1.3.1-2
ii  plasma-widgets-workspace  4:4.8.4-5

Versions of packages plasma-desktop recommends:
ii  kde-workspace  4:4.8.4-5

plasma-desktop suggests no packages.

-- no debconf information