[Bug 36647] Re: setgid not respected when copying into a directory

[Adam Conrad]

Based on your comments on IRC, is it correct to assume that this DOESN'T occur when copying files, but rather only when moving them?

If so, this is also how command line tools work (mv just essentially renames/reparents the file, but keeps permissions identical), and it's also how other operating systems work (no, really, try on WinNT with NTFS, copy will inherit permissions from the destination, move won't)

I'm not sure how this is a bug, though perhaps a wishlist to have an option in Nautilus to override the default "move" behaviour.

-- 
setgid not respected when copying into a directory
https://launchpad.net/malone/bugs/36647