Fix Azure#53089 (Azure#53090)

Author: ArthurMa1978

sdk/authorization/Azure.ResourceManager.Authorization/CHANGELOG.md

@@ -1,15 +1,11 @@
 # Release History
 
-## 1.2.0-beta.1 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
+## 1.1.6 (2025-11-09)
 
 ### Other Changes
 
+- Support the [case](https://github.com/Azure/azure-sdk-for-net/issues/53089) where the delegatedManagedIdentityResourceId of RoleAssignment may be an empty string rather than null.
+
 ## 1.1.5 (2025-07-28)
 
 ### Features Added

sdk/authorization/Azure.ResourceManager.Authorization/src/Azure.ResourceManager.Authorization.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>1.2.0-beta.1</Version>
+    <Version>1.1.6</Version>
     <!--The ApiCompatVersion is managed automatically and should not generally be modified manually.-->
     <ApiCompatVersion>1.1.5</ApiCompatVersion>
     <PackageId>Azure.ResourceManager.Authorization</PackageId>

sdk/authorization/Azure.ResourceManager.Authorization/src/Generated/RoleAssignmentData.Serialization.cs

@@ -67,6 +67,9 @@ rename-mapping:
   UserSet: RoleManagementUserInfo
   UserType: RoleManagementUserType
 
+models-to-treat-empty-string-as-null:
+  - RoleAssignmentData
+
 format-by-name-rules:
   'tenantId': 'uuid'
   'applicationId': 'uuid'