$ git clone -n https://src.fedoraproject.org/rpms/abattis-cantarell-fonts.git /var/lib/mock/f41-build-1270854-23104/root/chroot_tmpdir/scmroot/abattis-cantarell-fonts
Cloning into '/var/lib/mock/f41-build-1270854-23104/root/chroot_tmpdir/scmroot/abattis-cantarell-fonts'...
$ git fetch origin 9a150f71e1d3fa39347003dda08d7065388ee248:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/abattis-cantarell-fonts
 * [new ref]         9a150f71e1d3fa39347003dda08d7065388ee248 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a150f7 Use prefer instead of accept like other packages do