$ git clone -n https://src.fedoraproject.org/rpms/python-zstandard.git /var/lib/mock/f41-build-856911-167815/root/chroot_tmpdir/scmroot/python-zstandard
Cloning into '/var/lib/mock/f41-build-856911-167815/root/chroot_tmpdir/scmroot/python-zstandard'...
$ git fetch origin 116bb772112ac74ca669c9ddbe87d3e489b4caa1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-zstandard
 * [new ref]         116bb772112ac74ca669c9ddbe87d3e489b4caa1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 116bb77 switch to modern python packaging guidelines and automatic BuildRequires generation