$ git clone -n https://src.fedoraproject.org/rpms/nextpnr.git /var/lib/mock/f40-build-1778230-24804/root/chroot_tmpdir/scmroot/nextpnr
Cloning into '/var/lib/mock/f40-build-1778230-24804/root/chroot_tmpdir/scmroot/nextpnr'...
$ git fetch origin e852212f6c85271e75506eff39231943cb5d6a37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nextpnr
 * [new ref]         e852212f6c85271e75506eff39231943cb5d6a37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e852212 update to newer snapshot