Save Report As function after editing a currently existing Report

Save Report As function after editing a currently existing Report

I find it odd that after running a report, you can "Save As" the report to essentially create a new one; however why is it that you cannot use the "Save As" function if you edit the existing report and run it.  After editing a currently existing report, you are only able to override "Save" the report.  You cannot save it as a new report.

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