$ git clone -n https://src.fedoraproject.org/rpms/libretro-handy.git /var/lib/mock/f40-build-2008263-45357/root/chroot_tmpdir/scmroot/libretro-handy
Cloning into '/var/lib/mock/f40-build-2008263-45357/root/chroot_tmpdir/scmroot/libretro-handy'...
$ git fetch origin 75caf6df4630357a70928aeb3c912011ffe518b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libretro-handy
 * [new ref]         75caf6df4630357a70928aeb3c912011ffe518b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75caf6d chore: Update to latest git snapshot