$ git clone -n https://src.fedoraproject.org/rpms/nginx-mod-fancyindex.git /var/lib/mock/f39-build-2269168-54761/root/chroot_tmpdir/scmroot/nginx-mod-fancyindex
Cloning into '/var/lib/mock/f39-build-2269168-54761/root/chroot_tmpdir/scmroot/nginx-mod-fancyindex'...
$ git fetch origin ba63fb334fc90c1623aafce8366cf759ec08f21e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nginx-mod-fancyindex
 * [new ref]         ba63fb334fc90c1623aafce8366cf759ec08f21e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba63fb3 Initial import into Fedora (#2235167)