$ git clone -n https://src.fedoraproject.org/rpms/algol68g.git /var/lib/mock/f41-build-1034207-18618/root/chroot_tmpdir/scmroot/algol68g
Cloning into '/var/lib/mock/f41-build-1034207-18618/root/chroot_tmpdir/scmroot/algol68g'...
$ git fetch origin 8e4b782fbbef261a66b47de5f00afd4fce181829:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/algol68g
 * [new ref]         8e4b782fbbef261a66b47de5f00afd4fce181829 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e4b782 Update to 3.5.3