fix bug of get-azresourcegroup (Azure#21337)

* fix bug of get-azresourcegroup

* add change log

* Update ChangeLog.md

* revise code to pass test

---------

Co-authored-by: Yabo Hu <yabhu@microsoft.com>

Author: Nickcandy

src/Resources/ResourceManager/SdkClient/ResourceManagerSdkClient.cs

@@ -909,7 +909,11 @@ public virtual List<PSResourceGroup> FilterResourceGroups(string name, Hashtable
             {
                 try
                 {
-                    result.Add(ResourceManagementClient.ResourceGroups.Get(name).ToPSResourceGroup());
+                    PSResourceGroup resourceGroup = ResourceManagementClient.ResourceGroups.Get(name).ToPSResourceGroup();
+                    if (string.IsNullOrEmpty(location) || resourceGroup.Location.EqualsAsLocation(location))
+                    {
+                        result.Add(resourceGroup);
+                    }
                 }
                 catch (CloudException)
                 {

src/Resources/Resources/ChangeLog.md

@@ -20,6 +20,7 @@
 
 ## Upcoming Release
 * Fixed an issue when running the `New-AzManagementGroup` command where it tried to cast an async operation as a Management Group. [#21000]
+* Fixed an issue when running `Get-AzResourceGroup -Name 'some_name'`, it ignores '-Location' if specified[#21225]
 
 ## Version 6.5.3
 * Updated behavior of Get-AzPolicyDefinition which previously returned all definitions when -Id was provided with a nonexistent policy definition id. Fixed to correctly throw a 404 exception in this case.