$ git clone -n https://src.fedoraproject.org/rpms/c-ares.git /var/lib/mock/f39-build-1844223-42049/root/chroot_tmpdir/scmroot/c-ares
Cloning into '/var/lib/mock/f39-build-1844223-42049/root/chroot_tmpdir/scmroot/c-ares'...
$ git fetch origin 36c6ef2277e7923796d8be3d18e0ebde0e8a3722:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/c-ares
 * [new ref]         36c6ef2277e7923796d8be3d18e0ebde0e8a3722 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36c6ef2 1.21.0