$ git clone -n https://src.fedoraproject.org/rpms/libshout.git /var/lib/mock/f41-build-1029080-18372/root/chroot_tmpdir/scmroot/libshout
Cloning into '/var/lib/mock/f41-build-1029080-18372/root/chroot_tmpdir/scmroot/libshout'...
$ git fetch origin a8cf20488c40e1e551794974dd8397bbe678b10e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libshout
 * [new ref]         a8cf20488c40e1e551794974dd8397bbe678b10e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8cf204 Eliminate use of obsolete %patchN syntax (#2283636)