$ git clone -n https://src.fedoraproject.org/rpms/python3-pyasn1.git /var/lib/mock/f39-build-1940838-43153/root/chroot_tmpdir/scmroot/python3-pyasn1
Cloning into '/var/lib/mock/f39-build-1940838-43153/root/chroot_tmpdir/scmroot/python3-pyasn1'...
$ git fetch origin 45c720de256c0d1976e61729e354f2aa4f5f67b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3-pyasn1
 * [new ref]         45c720de256c0d1976e61729e354f2aa4f5f67b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c720d Added the README