Don’t show offers in conversation with self.

// FREEBIE

Signal/src/util/ThreadUtil.m

@@ -108,6 +108,9 @@ NS_ASSUME_NONNULL_BEGIN
     OWSAssert(blockingManager);
     OWSAssert(maxRangeSize > 0);
 
+    NSString *localNumber = [TSAccountManager localNumber];
+    OWSAssert(localNumber.length > 0);
+
     ThreadDynamicInteractions *result = [ThreadDynamicInteractions new];
 
     [storageManager.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
@@ -279,6 +282,12 @@ NS_ASSUME_NONNULL_BEGIN
         } else {
             NSString *recipientId = ((TSContactThread *)thread).contactIdentifier;
 
+            if ([recipientId isEqualToString:localNumber]) {
+                // Don't add self to contacts.
+                shouldHaveAddToContactsOffer = NO;
+                // Don't bother to block self.
+                shouldHaveBlockOffer = NO;
+            } else {
                 if ([[blockingManager blockedPhoneNumbers] containsObject:recipientId]) {
                     // Only create "add to contacts" offers for users which are not already blocked.
                     shouldHaveAddToContactsOffer = NO;
@@ -294,6 +303,7 @@ NS_ASSUME_NONNULL_BEGIN
                     shouldHaveBlockOffer = NO;
                 }
             }
+        }
 
         if (!firstMessage) {
             shouldHaveAddToContactsOffer = NO;