Merge pull request #24971 from dotnet/marcpopMSFT-allowtarchanges

Allow file changes from tar as it's just a warning

Author: marcpopMSFT

src/Tests/HelixTasks/TarGzFileCreateFromDirectory.cs

@@ -43,8 +43,9 @@ public sealed class TarGzFileCreateFromDirectory : ToolTask
         protected override int ExecuteTool(string pathToTool, string responseFileCommands, string commandLineCommands)
         {
             int returnCode = base.ExecuteTool(pathToTool, responseFileCommands, commandLineCommands);
-
-            if (IgnoreExitCode)
+            
+            // returnCode 1 indicates that files changed during tar. In our case, it is likely being overwritten by another copy of the same file, so we can safely ignore this warning.
+            if (IgnoreExitCode || returnCode == 1)
             {
                 returnCode = 0;
             }