The SORT extension in 2.4.4 over imapc never returns any UIDs

Hi guys!

This is really annoying. On the command to dovecot over imapc from another one: "UID SEARCH ALL" I get my UIDs: "* SEARCH 1 2 3 4" But when sending: "UID SORT (REVERSE ARRIVAL) US-ASCII NOT DELETED" I get literally nothing: "* SORT"

Sorry, but this is a bug. Thank you!