$ git clone -n https://src.fedoraproject.org/rpms/perl-FFI-Platypus.git /var/lib/mock/f41-build-846612-163137/root/chroot_tmpdir/scmroot/perl-FFI-Platypus
Cloning into '/var/lib/mock/f41-build-846612-163137/root/chroot_tmpdir/scmroot/perl-FFI-Platypus'...
$ git fetch origin db8077c3329c0ee504d3b3b8b4265a441c0d0e13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-FFI-Platypus
 * [new ref]         db8077c3329c0ee504d3b3b8b4265a441c0d0e13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db8077c 2.09 bump