$ git clone -n https://src.fedoraproject.org/rpms/gnome-initial-setup.git /var/lib/mock/f40-build-2604510-63395/root/chroot_tmpdir/scmroot/gnome-initial-setup
Cloning into '/var/lib/mock/f40-build-2604510-63395/root/chroot_tmpdir/scmroot/gnome-initial-setup'...
$ git fetch origin 87466503cbe347781cb06bcf6dde8a9d73cf9952:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-initial-setup
 * [new ref]         87466503cbe347781cb06bcf6dde8a9d73cf9952 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8746650 Revert vendor.conf for webui deferral