If you create a snapshot with the same name and try to delete the old name snapshot both snapshots will be deleted.
In my example I use 1-Test 1 and 1-Test 1
dropbox.com/sh/rvynsfv2phfd … 0s2Xa?dl=0
Is this for the Windows Beta version?
If so, it should have been posted in the Windows Beta forum. https://www.literatureandlatte.com/forum/viewforum.php?f=57
If you want the devs to see it, you might want to PM a mod and request they move it there.
Best,
Jim