$ git clone -n https://src.fedoraproject.org/rpms/mingw-filesystem.git /var/lib/mock/f41-build-924927-17111/root/chroot_tmpdir/scmroot/mingw-filesystem
Cloning into '/var/lib/mock/f41-build-924927-17111/root/chroot_tmpdir/scmroot/mingw-filesystem'...
$ git fetch origin 9f0c2b852a4068fdd6a5960de9449d8bfcbf7636:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-filesystem
 * [new ref]         9f0c2b852a4068fdd6a5960de9449d8bfcbf7636 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f0c2b8 Bump release