From 39e4b26ff0cc8ff946f209ffaab71f1a1954c9cb Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Sun, 20 May 2018 12:10:07 +0200
Subject: [PATCH] prefetch omemo device lists only if muc has omemo enabled

---
 .../siacs/conversations/services/XmppConnectionService.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index 77f89f385..5e4a83778 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -2181,7 +2181,7 @@ public class XmppConnectionService extends Service {
 
 			@Override
 			public void onIqPacketReceived(Account account, IqPacket packet) {
-
+				final boolean omemoEnabled = conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL;
 				Element query = packet.query("http://jabber.org/protocol/muc#admin");
 				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
 					for (Element child : query.getChildren()) {
@@ -2190,7 +2190,8 @@ public class XmppConnectionService extends Service {
 							if (!user.realJidMatchesAccount()) {
 								boolean isNew = conversation.getMucOptions().updateUser(user);
 								Contact contact = user.getContact();
-								if (isNew
+								if (omemoEnabled
+										&& isNew
 										&& user.getRealJid() != null
 										&& (contact == null || !contact.mutualPresenceSubscription())
 										&& axolotlService.hasEmptyDeviceList(user.getRealJid())) {