Sync block state for contacts.

SignalServiceKit/src/Devices/OWSContactsOutputStream.m

@@ -7,6 +7,7 @@
 #import "Cryptography.h"
 #import "MIMETypeUtil.h"
 #import "NSData+keyVersionByte.h"
+#import "OWSBlockingManager.h"
 #import "OWSDisappearingMessagesConfiguration.h"
 #import "OWSRecipientIdentity.h"
 #import "OWSSignalServiceProtos.pb.h"
@@ -63,6 +64,10 @@ NS_ASSUME_NONNULL_BEGIN
         }
     }
 
+    if ([OWSBlockingManager.sharedManager isRecipientIdBlocked:signalAccount.recipientId]) {
+        [contactBuilder setBlocked:YES];
+    }
+
     NSData *contactData = [[contactBuilder build] data];
 
     uint32_t contactDataLength = (uint32_t)contactData.length;