code_style: fast check when the local changed file list does not change

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/ViewModels/WorkingCopy.cs

@@ -231,11 +231,8 @@ public WorkingCopy(Repository repo)
 
         public void SetData(List<Models.Change> changes)
         {
-            do
+            if (!IsChanged(_cached, changes))
             {
-                if (IsChanged(_cached, changes))
-                    break;
-
                 if (_useAmend)
                 {
                     var testStaged = GetStagedChanges(_cached);
@@ -269,9 +266,7 @@ public void SetData(List<Models.Change> changes)
                 UpdateInProgressState();
                 UpdateDetail();
                 return;
-#pragma warning disable CS0162
-            } while (false);
-#pragma warning restore CS0162
+            }
 
             var lastSelectedUnstaged = new HashSet<string>();
             if (_selectedUnstaged is { Count: > 0 })