MB-10258: Partition versions are now preserved

There were cases when the partition version of newly added passive partition
wasn't preserved. The were added but later on dropped again.

Change-Id: I253c9c138cec4ddaed1c7537b2d6339a70b18a89
Reviewed-on: http://review.couchbase.org/33745
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: Volker Mische <volker.mische@gmail.com>