[INTERNAL] fix for commit ea8fb1d8baa3271deee1c6079d0fb658c6fbe2b8

The changes made by this commit removed the logic to create parent
directories on demand and so the IPN failed randomly regarding the order
of the folders which were returned by the FileList DIFF operation.

Change-Id: I29872826e2a9e3e6cc9181bf4253fe0b4f982c08
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1977
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>