From 737d180c71a8c1bf39164b0b5ad65836b04abb24 Mon Sep 17 00:00:00 2001
From: Maggie Kimani <maggiekim42@gmail.com>
Date: Wed, 14 Jun 2023 16:17:46 +0300
Subject: [PATCH 1/2] Clone extensions in the schema copy constructor

---
 src/Microsoft.OpenApi/Models/OpenApiSchema.cs |  1 +
 .../Models/OpenApiSchemaTests.cs              | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/src/Microsoft.OpenApi/Models/OpenApiSchema.cs b/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
index 0176ea1d9..b0ac2dbac 100644
--- a/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
+++ b/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
@@ -288,6 +288,7 @@ public OpenApiSchema(OpenApiSchema schema)
             ExternalDocs = schema?.ExternalDocs != null ? new(schema?.ExternalDocs) : null;
             Deprecated = schema?.Deprecated ?? Deprecated;
             Xml = schema?.Xml != null ? new(schema?.Xml) : null;
+            Extensions = schema?.Extensions != null ? new Dictionary<string, IOpenApiExtension>(schema.Extensions) : null;
             UnresolvedReference = schema?.UnresolvedReference ?? UnresolvedReference;
             Reference = schema?.Reference != null ? new(schema?.Reference) : null;
         }
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
index e4078f2f7..2a0dd0039 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
@@ -9,6 +9,7 @@
 using FluentAssertions;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
+using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Writers;
 using VerifyXunit;
@@ -479,5 +480,29 @@ public void OpenApiSchemaCopyConstructorSucceeds()
             Assert.Equal("date", actualSchema.Format);
             Assert.True(actualSchema.Nullable);
         }
+
+        [Fact]
+        public void CloningSchemaExtensionsWorks()
+        {
+            // Arrange
+            var schema = new OpenApiSchema
+            {
+                Extensions =
+                {
+                    { "x-myextension", new OpenApiInteger(42) }
+                }
+            };
+
+            // Act && Assert
+            var schemaCopy = new OpenApiSchema(schema);
+            Assert.Equal(1, schemaCopy.Extensions.Count);
+
+            // Act && Assert
+            schemaCopy.Extensions = new Dictionary<string, IOpenApiExtension>
+            {
+                { "x-myextension" , new OpenApiInteger(40) }
+            };
+            Assert.NotEqual(schema.Extensions, schemaCopy.Extensions);
+        }
     }
 }

From 7d0df919cf4ecdac681b71b52cfba5b75b81855f Mon Sep 17 00:00:00 2001
From: Maggie Kimani <maggiekim42@gmail.com>
Date: Wed, 14 Jun 2023 16:31:15 +0300
Subject: [PATCH 2/2] Update public api

---
 test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
index d993a259e..96071507f 100755
--- a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
+++ b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
@@ -1024,6 +1024,8 @@ namespace Microsoft.OpenApi.Models
         Callback = 8,
         [Microsoft.OpenApi.Attributes.Display("tags")]
         Tag = 9,
+        [Microsoft.OpenApi.Attributes.Display("paths")]
+        Path = 10,
     }
     public class RuntimeExpressionAnyWrapper : Microsoft.OpenApi.Interfaces.IOpenApiElement
     {