$ git clone -n https://src.fedoraproject.org/rpms/python-pyvhacd.git /var/lib/mock/f40-build-735669-106456/root/chroot_tmpdir/scmroot/python-pyvhacd
Cloning into '/var/lib/mock/f40-build-735669-106456/root/chroot_tmpdir/scmroot/python-pyvhacd'...
$ git fetch origin 707bd67b8eb318124a71b05e5ecc611d71efe774:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyvhacd
 * [new ref]         707bd67b8eb318124a71b05e5ecc611d71efe774 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 707bd67 F38+: Use %{py3_test_envvars} to run the tests