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No troll here. Just difficulty with 1) understanding your complaint and 2) duplicating it.
Even though I now understand the behavior, I don't use the folder list. I had to find it to try to duplicate your bug.
I've never liked it, because it's too easy to make a mistake. I like having source and destination windows open at the same time, preferably in a split-window... but that's only available on KDE.
But, if Microsoft acknowledges it as a bug, then that's a good thing.
Now, the "zero-day" SMB exploit in Windows 7 and Server 2008 R2 that can shut down a server? THAT is a major bug. Losing your primary profile because someone logged into the guest account? Again, that's a major bug.
Yours is minor, but I understand the annoyance to you. I do seriously suggest you review your procedures for file management, however.
I've spent the last few days dealing with a user who insists on making unscheduled, untested changes to a "mission critical" server, then yells when it stops working. It's left me a bit irritable.