$ git clone -n https://src.fedoraproject.org/rpms/gnome-usage.git /var/lib/mock/f39-build-1578347-37995/root/chroot_tmpdir/scmroot/gnome-usage
Cloning into '/var/lib/mock/f39-build-1578347-37995/root/chroot_tmpdir/scmroot/gnome-usage'...
$ git fetch origin 734d61e208055723ea3ea4a545cda6662793f421:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-usage
 * [new ref]         734d61e208055723ea3ea4a545cda6662793f421 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 734d61e Add GNOME pre-release version handling