* Additional _disposed checks in AutorecoveringChannel.

Author: lukebakken

projects/RabbitMQ.Client/Impl/AutorecoveringChannel.cs

@@ -254,10 +254,23 @@ await _connection.DeleteRecordedChannelAsync(this,
         public override string ToString()
             => InnerChannel.ToString();
 
-        public void Dispose() => DisposeAsync().AsTask().GetAwaiter().GetResult();
+        public void Dispose()
+        {
+            if (_disposed)
+            {
+                return;
+            }
+
+            DisposeAsync().AsTask().GetAwaiter().GetResult();
+        }
 
         public async ValueTask DisposeAsync()
         {
+            if (_disposed)
+            {
+                return;
+            }
+
             if (IsDisposing)
             {
                 return;