$ git clone -n https://src.fedoraproject.org/forks/u2fsdgvkx1/rpms/sympy.git /var/lib/mock/f41-build-side-1-3125307-39494/root/chroot_tmpdir/scmroot/sympy
Cloning into '/var/lib/mock/f41-build-side-1-3125307-39494/root/chroot_tmpdir/scmroot/sympy'...
$ git fetch origin 74fa827d99ad21eb47381fd680d8b14cb945e0a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/u2fsdgvkx1/rpms/sympy
 * [new ref]         74fa827d99ad21eb47381fd680d8b14cb945e0a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74fa827 Disable llvmlite on riscv64