There's a test in the couchdb test suite which checks for the ability to fetch a document with a _local_seq option as specified here: http://wiki.apache.org/couchdb/HTTP_Document_API#Special_Fields
The test is here: https://github.com/nick-thompson/couchdb-harness/blob/master/script/test/basics.js#L83
We can either add this feature to PouchDB or remove the test from the harness for being overly specific.
(#596) - Added local_seq option
merged in: cf53b15