tdf#90333 Dictionaries Path Cannot Be Changed

PathSettings::impl_storePath wants to be able to nil the Dictionaries
path in the old copy of properties

Change-Id: Id579914cfa8b459efce962d304e2f9d6185bd55f
Reviewed-on: https://gerrit.libreoffice.org/64115
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
diff --git a/officecfg/registry/schema/org/openoffice/Office/Common.xcs b/officecfg/registry/schema/org/openoffice/Office/Common.xcs
index 4ef848e..225567c 100644
--- a/officecfg/registry/schema/org/openoffice/Office/Common.xcs
+++ b/officecfg/registry/schema/org/openoffice/Office/Common.xcs
@@ -1616,7 +1616,7 @@
          </info>
          <value>$(insturl)/@LIBO_SHARE_FOLDER@/config</value>
        </prop>
        <prop oor:name="Dictionary" oor:type="xs:string" oor:nillable="false">
        <prop oor:name="Dictionary" oor:type="xs:string">
          <info>
            <desc>Contains the provided dictionaries.</desc>
          </info>