server_name target publisher server name.account publication account name.
This function is called on the subscriber to copy the current state of the
elements of the publication from the publishing server.  Copied data can
include DAV collections, tables, procedures etc.  Syncing the
subscription using repl_sync will synchronize the subscription
once it has been initialized with this function.  The state copied
corresponds to the state of the published data as of the last checkpoint
completed on the publisher.
