fix: removes unnecessary null prop in copy constructor

Signed-off-by: Vincent Biret <[email protected]>

Author: baywet

src/Microsoft.OpenApi/Models/References/OpenApiCallbackReference.cs

@@ -69,8 +69,8 @@ public OpenApiCallbackReference(string referenceId, OpenApiDocument hostDocument
         public OpenApiCallbackReference(OpenApiCallbackReference callback)
         {
             Utils.CheckArgumentNull(callback);
-            Reference = callback?.Reference != null ? new(callback.Reference) : null;
-            UnresolvedReference = callback?.UnresolvedReference ?? false;
+            Reference = callback.Reference != null ? new(callback.Reference) : null;
+            UnresolvedReference = callback.UnresolvedReference;
         }
 
         internal OpenApiCallbackReference(OpenApiCallback target, string referenceId)

src/Microsoft.OpenApi/Models/References/OpenApiExampleReference.cs

@@ -67,8 +67,8 @@ public OpenApiExampleReference(string referenceId, OpenApiDocument hostDocument,
         public OpenApiExampleReference(OpenApiExampleReference example)
         {
             Utils.CheckArgumentNull(example);
-            Reference = example?.Reference != null ? new(example.Reference) : null;
-            UnresolvedReference = example?.UnresolvedReference ?? false;
+            Reference = example.Reference != null ? new(example.Reference) : null;
+            UnresolvedReference = example.UnresolvedReference;
             //no need to copy summary and description as if they are not overridden, they will be fetched from the target
             //if they are, the reference copy will handle it
         }

src/Microsoft.OpenApi/Models/References/OpenApiLinkReference.cs

@@ -65,8 +65,8 @@ public OpenApiLinkReference(OpenApiLinkReference reference)
         {
             Utils.CheckArgumentNull(reference);
 
-            Reference = reference?.Reference != null ? new(reference.Reference) : null;
-            UnresolvedReference = reference?.UnresolvedReference ?? false;
+            Reference = reference.Reference != null ? new(reference.Reference) : null;
+            UnresolvedReference = reference.UnresolvedReference;
             //no need to copy summary and description as if they are not overridden, they will be fetched from the target
             //if they are, the reference copy will handle it
         }