CR: Add back deprecated constructor to debug list

Signal/src/ViewControllers/DebugUI/DebugUIMessages.m

@@ -3553,7 +3553,13 @@ typedef OWSContact * (^OWSContactBlock)(YapDatabaseReadWriteTransaction *transac
                                                      withTransaction:transaction]];
         [result addObject:[TSErrorMessage corruptedMessageWithEnvelope:[self createEnvelopeForThread:thread]
                                                        withTransaction:transaction]];
-
+        
+        
+        TSInvalidIdentityKeyReceivingErrorMessage *_Nullable blockingSNChangeMessage =
+            [TSInvalidIdentityKeyReceivingErrorMessage untrustedKeyWithEnvelope:[self createEnvelopeForThread:thread]
+                                                                withTransaction:transaction];
+        OWSAssert(blockingSNChangeMessage);
+        [result addObject:blockingSNChangeMessage];
         [result addObject:[[TSErrorMessage alloc] initWithTimestamp:[NSDate ows_millisecondTimeStamp]
                                                            inThread:thread
                                                   failedMessageType:TSErrorMessageNonBlockingIdentityChange

SignalServiceKit/src/Messages/InvalidKeyMessages/TSInvalidIdentityKeyReceivingErrorMessage.h

@@ -6,10 +6,15 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+@class SSKEnvelope;
+
 // DEPRECATED - we no longer create new instances of this class (as of  mid-2017); However, existing instances may
 // exist, so we should keep this class around to honor their old behavior.
 @interface TSInvalidIdentityKeyReceivingErrorMessage : TSInvalidIdentityKeyErrorMessage
 
++ (nullable instancetype)untrustedKeyWithEnvelope:(SSKEnvelope *)envelope
+                                  withTransaction:(YapDatabaseReadWriteTransaction *)transaction;
+
 @end
 
 NS_ASSUME_NONNULL_END

SignalServiceKit/src/Messages/InvalidKeyMessages/TSInvalidIdentityKeyReceivingErrorMessage.m

@@ -33,6 +33,39 @@ NS_ASSUME_NONNULL_BEGIN
 
 @synthesize envelopeData = _envelopeData;
 
++ (nullable instancetype)untrustedKeyWithEnvelope:(SSKEnvelope *)envelope
+                         withTransaction:(YapDatabaseReadWriteTransaction *)transaction
+{
+    TSContactThread *contactThread =
+    [TSContactThread getOrCreateThreadWithContactId:envelope.source transaction:transaction];
+    TSInvalidIdentityKeyReceivingErrorMessage *errorMessage =
+    [[self alloc] initForUnknownIdentityKeyWithTimestamp:envelope.timestamp
+                                                inThread:contactThread
+                                        incomingEnvelope:envelope];
+    return errorMessage;
+}
+
+- (nullable instancetype)initForUnknownIdentityKeyWithTimestamp:(uint64_t)timestamp
+                                              inThread:(TSThread *)thread
+                                      incomingEnvelope:(SSKEnvelope *)envelope
+{
+    self = [self initWithTimestamp:timestamp inThread:thread failedMessageType:TSErrorMessageWrongTrustedIdentityKey];
+    if (!self) {
+        return self;
+    }
+    
+    NSError *error;
+    _envelopeData = [envelope serializedDataAndReturnError:&error];
+    if (!_envelopeData || error != nil) {
+        OWSFail(@"%@ failure: envelope data failed with error: %@", self.logTag, error);
+        return nil;
+    }
+    
+    _authorId = envelope.source;
+    
+    return self;
+}
+
 - (nullable SSKEnvelope *)envelope
 {
     if (!_envelope) {