tdf#128523: drop cache directory when restart manager initiates restart

This would allow to re-create cached elements that could be broken.
Restarts include those after a version upgrade (with bugfixes); using
safe mode dialog (after crashes/problems); some configuration changes.
An example of issue fixed by this is bad cached icons from versions
affected by tdf#119020, that still make troubles to users after a year
after the reason of generation of bad icons had been fixed [1, 2, 3].

[1] https://ask.libreoffice.org/en/question/211759
[2] https://ask.libreoffice.org/en/question/215263
[3] https://ask.libreoffice.org/en/question/217831

Change-Id: I2362547c25f8f265915efafa4e224435eda03e20
Reviewed-on: https://gerrit.libreoffice.org/83138
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>

0 files changed, 0 insertions, 0 deletions