$ git clone -n https://src.fedoraproject.org/rpms/nextpnr.git /var/lib/mock/f41-build-side-1-3071817-38819/root/chroot_tmpdir/scmroot/nextpnr
Cloning into '/var/lib/mock/f41-build-side-1-3071817-38819/root/chroot_tmpdir/scmroot/nextpnr'...
$ git fetch origin 575c231fe837ecbbea1afcc9be4f4ceb4ab9e399:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nextpnr
 * [new ref]         575c231fe837ecbbea1afcc9be4f4ceb4ab9e399 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 575c231 update to newer snapshot