21 collides with the pattern field menu id

Change-Id: Ia90995861adabbe1615e24ee10defe25cee76c56
Reviewed-on: https://gerrit.libreoffice.org/48461Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>