$ git clone -n https://src.fedoraproject.org/rpms/clash-meta.git /var/lib/mock/f45-build-3972-329/root/chroot_tmpdir/scmroot/clash-meta
Cloning into '/var/lib/mock/f45-build-3972-329/root/chroot_tmpdir/scmroot/clash-meta'...
$ git fetch origin 5a7aa9f20ca7f4089c23b4d657f5feefb45dc4ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clash-meta
 * [new ref]         5a7aa9f20ca7f4089c23b4d657f5feefb45dc4ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a7aa9f Update to 1.19.30 upstream release