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-rw-r--r--src/main/java/de/pixart/messenger/crypto/axolotl/AxolotlService.java8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/main/java/de/pixart/messenger/crypto/axolotl/AxolotlService.java b/src/main/java/de/pixart/messenger/crypto/axolotl/AxolotlService.java
index 6970109b8..6721a7975 100644
--- a/src/main/java/de/pixart/messenger/crypto/axolotl/AxolotlService.java
+++ b/src/main/java/de/pixart/messenger/crypto/axolotl/AxolotlService.java
@@ -1211,11 +1211,11 @@ public class AxolotlService implements OnAdvancedStreamFeaturesLoaded {
}
@Nullable
- private boolean buildHeader(XmppAxolotlMessage axolotlMessage, Conversation conversation) {
-
- Set<XmppAxolotlSession> remoteSessions = findSessionsForConversation(conversation);
+ private boolean buildHeader(XmppAxolotlMessage axolotlMessage, Conversation c) {
+ Set<XmppAxolotlSession> remoteSessions = findSessionsForConversation(c);
+ final boolean acceptEmpty = c.getMode() == Conversation.MODE_MULTI && c.getMucOptions().getUserCount() == 0;
Collection<XmppAxolotlSession> ownSessions = findOwnSessions();
- if (remoteSessions.isEmpty()) {
+ if (remoteSessions.isEmpty() && !acceptEmpty) {
return false;
}
for (XmppAxolotlSession session : remoteSessions) {