fdo#77057 quick fix: do not touch KindMap for alien file types

Change-Id: Iffc24dc7ce12de07660eadcf8a525e77856593e1
(cherry picked from commit 57bf88d21cacb025e7bea40da78616bb4d165215)
Reviewed-on: https://gerrit.libreoffice.org/10054
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>