$ git clone -n https://src.fedoraproject.org/forks/hursand/rpms/python-greenlet.git /var/lib/mock/f41-build-side-2-python-2708862-30473/root/chroot_tmpdir/scmroot/python-greenlet
Cloning into '/var/lib/mock/f41-build-side-2-python-2708862-30473/root/chroot_tmpdir/scmroot/python-greenlet'...
$ git fetch origin b7a019d753e5ffe8b5d2362378fbee0ebf54dbd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/hursand/rpms/python-greenlet
 * [new ref]         b7a019d753e5ffe8b5d2362378fbee0ebf54dbd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7a019d Undefine _include_frame_pointers for riscv64