$ git clone -n https://src.fedoraproject.org/rpms/vdr-osd2web.git /var/lib/mock/f41-build-side-1-2778957-32451/root/chroot_tmpdir/scmroot/vdr-osd2web
Cloning into '/var/lib/mock/f41-build-side-1-2778957-32451/root/chroot_tmpdir/scmroot/vdr-osd2web'...
$ git fetch origin eb308d339c454f7051260f5c5951952df383de9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-osd2web
 * [new ref]         eb308d339c454f7051260f5c5951952df383de9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb308d3 convert GPLv2+ license to SPDX