Save As... problem

Let's say I have a file Test_1.mscz. I save it as Test_2.mscz and change it. Then I want to open Test_1.mscz for some reason, while Test_2.mscz is still open. First of all, I don't see Test_1.mscz in the "Open Recent" file list (which is a minor nuisance). So, I find Test_1.mscz through Open File and I try to open it. Musescore offers to save Test_2.mscz before closing it. So, I wonder if it's a bug or somebody requested it as a feature.