imap: fix multi-message partial header fetches

We must keep the contents of {-partial} around when handling
a request to fetch multiple messages.

1 files changed, 1 insertions, 1 deletions

diff --git a/t/imapd.t b/t/imapd.t
index 59b95a6b..fcbbdc09 100644
--- a/t/imapd.t
+++ b/t/imapd.t
@@ -291,7 +291,7 @@ $pi_config->each_inbox(sub {
                  qr/done_testing;(?:\r\n){1,2}\z/,
                 'BODY[2.1.2] tail matched');
 
-        $ret = $mic->fetch_hash($uidnext, 'BODY[2.HEADER]') or
+        $ret = $mic->fetch_hash("1:$uidnext", 'BODY[2.HEADER]') or
                                                 BAIL_OUT "2.HEADER $@";
         like($ret->{$uidnext}->{'BODY[2.HEADER]'},
                 qr/\ADate: Sat, 18 Apr 2020 22:20:20 /,