fix break to count of sync completions from MatchResult

StackExchange.Redis/CompletionManager.cs

@@ -8,6 +8,9 @@ internal static class CompletionManagerHelpers
         public static void CompleteSyncOrAsync(this PhysicalBridge bridge, ICompletable operation)
             => CompletionManager.CompleteSyncOrAsyncImpl(bridge?.completionManager, operation);
 
+        public static void IncrementSyncCount(this PhysicalBridge bridge)
+            => bridge?.completionManager?.IncrementSyncCount();
+
         public static void CompleteAsync(this PhysicalBridge bridge, ICompletable operation)
             => CompletionManager.CompleteAsync(bridge?.completionManager, operation);
 
@@ -23,6 +26,8 @@ internal static void CompleteSyncOrAsyncImpl(CompletionManager manager, IComplet
             else SharedCompleteSyncOrAsync(operation);
         }
 
+        internal void IncrementSyncCount() => Interlocked.Increment(ref completedSync);
+
         internal static void CompleteAsync(CompletionManager manager, ICompletable operation)
         {
             var sched = manager.multiplexer.SocketManager;

StackExchange.Redis/PhysicalConnection.cs

@@ -1276,10 +1276,18 @@ private void MatchResult(RawResult result)
             }
 
             Trace("Response to: " + msg);
-            if (msg.ComputeResult(this, result) && !msg.TryComplete(false))
-            {   // got a result, and we couldn't complete it synchronously;
-                // note that we want to complete it async instead
-                BridgeCouldBeNull.CompleteAsync(msg);
+            if (msg.ComputeResult(this, result))
+            {
+                if (msg.TryComplete(false))
+                {
+                    BridgeCouldBeNull.IncrementSyncCount();
+                }
+                else
+                {
+                    // got a result, and we couldn't complete it synchronously;
+                    // note that we want to complete it async instead
+                    BridgeCouldBeNull.CompleteAsync(msg);
+                }
             }
         }