[INTERNAL] fix for commit 7b91fdd26adc00879ee90d6c7751bc8ac69af244

User permissions were not properly updated. This only
happened between the host and a new session user.

Change-Id: I49be64216c7fe53e0f92453c8b2b9602194d1689
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1069
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>