From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Tue, 16 Jan 2018 16:17:00 +0000 (+0200)
Subject: imapc: Fix imap_features=no-msn-updates to not fail on SELECT
X-Git-Tag: 2.3.9~2535
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6303446550dae335bc8c4b147d909e04894e4064;p=thirdparty%2Fdovecot%2Fcore.git

imapc: Fix imap_features=no-msn-updates to not fail on SELECT

The initial EXISTS reply shouldn't be ignored, only the following ones.
---

diff --git a/src/lib-storage/index/imapc/imapc-mailbox.c b/src/lib-storage/index/imapc/imapc-mailbox.c
index d5193b114a..5a18b899ad 100644
--- a/src/lib-storage/index/imapc/imapc-mailbox.c
+++ b/src/lib-storage/index/imapc/imapc-mailbox.c
@@ -151,8 +151,14 @@ imapc_untagged_exists(const struct imapc_untagged_reply *reply,
 	uint32_t exists_count = reply->num;
 	const struct mail_index_header *hdr;
 
-	if (mbox == NULL || IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES))
+	if (mbox == NULL)
 		return;
+	if (mbox->exists_received &&
+	    IMAPC_BOX_HAS_FEATURE(mbox, IMAPC_FEATURE_NO_MSN_UPDATES)) {
+		/* ignore all except the first EXISTS reply (returned by
+		   SELECT) */
+		return;
+	}
 
 	view = mbox->delayed_sync_view;
 	if (view == NULL)