be more careful with corner cases when mentioning multiple people

1 files changed, 11 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/entities/Conversation.java b/src/main/java/de/pixart/messenger/entities/Conversation.java
index a3811a751..f654902b4 100644
--- a/src/main/java/de/pixart/messenger/entities/Conversation.java
+++ b/src/main/java/de/pixart/messenger/entities/Conversation.java
@@ -303,6 +303,17 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
         return null;
     }
 
+    public boolean hasMessageWithCounterpart(Jid counterpart) {
+        synchronized (this.messages) {
+            for (Message message : this.messages) {
+                if (counterpart.equals(message.getCounterpart())) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     public void populateWithMessages(final List<Message> messages) {
         synchronized (this.messages) {
             messages.clear();