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+Enhancement: Allow scaling the search service
+
+Previously, the search service locked the index for its whole lifetime,
+so any other search service wouldn't be able to access to the index. With this
+change, the search service can be configure to lock the index per operation,
+so other search services can access the index as long as there is no operation
+ongoing.
+
+https://github.com/owncloud/ocis/pull/11029