$ git clone -n https://src.fedoraproject.org/rpms/nginx-mod-fancyindex.git /var/lib/mock/f42-build-side-1-3587370-46931/root/chroot_tmpdir/scmroot/nginx-mod-fancyindex
Cloning into '/var/lib/mock/f42-build-side-1-3587370-46931/root/chroot_tmpdir/scmroot/nginx-mod-fancyindex'...
$ git fetch origin 084f15500219009497ac1f9c9e3901548181e28a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nginx-mod-fancyindex
 * [new ref]         084f15500219009497ac1f9c9e3901548181e28a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 084f155 Rebuild for nginx 1.28.0