imap: Fix mailbox leak if MOVE can't open the source mailbox

Broken by 143b7c2b412ed8f155e812603fda81886bec466e

Fixes:
Panic: file mail-user.c: line 229 (mail_user_deinit): assertion failed: ((*user)->refcount == 1)

diff --git a/src/imap/cmd-copy.c b/src/imap/cmd-copy.c
index 59a4c7ef7538b73f0ec0e024408fbc3cdb39a43c..1ce018ba7449c38949011597215f42fc54d9ba10 100644 (file)
--- a/src/imap/cmd-copy.c
+++ b/src/imap/cmd-copy.c
@@ -309,6 +309,7 @@ static bool cmd_copy_full(struct client_command_context *cmd, bool move)
                        mail_search_args_unref(&search_args);
                        client_send_box_error(cmd, copy_ctx.srcbox);
                        mailbox_free(&copy_ctx.srcbox);
+                       mailbox_free(&destbox);
                        return TRUE;
                }
        }