$ git clone -n https://src.fedoraproject.org/rpms/openmsx.git /var/lib/mock/f41-build-side-1-2650100-27560/root/chroot_tmpdir/scmroot/openmsx
Cloning into '/var/lib/mock/f41-build-side-1-2650100-27560/root/chroot_tmpdir/scmroot/openmsx'...
$ git fetch origin cd7360ecc8098c06be9a5079b0997f9b83650649:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openmsx
 * [new ref]         cd7360ecc8098c06be9a5079b0997f9b83650649 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd7360e convert GPLv2 license to SPDX