$ git clone -n https://src.fedoraproject.org/rpms/nextpnr.git /var/lib/mock/f39-build-1646666-40415/root/chroot_tmpdir/scmroot/nextpnr
Cloning into '/var/lib/mock/f39-build-1646666-40415/root/chroot_tmpdir/scmroot/nextpnr'...
$ git fetch origin 4e461cc5f0fd659bc59777b06098541a07e57b64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nextpnr
 * [new ref]         4e461cc5f0fd659bc59777b06098541a07e57b64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e461cc update snapshot