$ git clone -n https://src.fedoraproject.org/rpms/vdr-osd2web.git /var/lib/mock/f42-build-side-1-3589309-46957/root/chroot_tmpdir/scmroot/vdr-osd2web
Cloning into '/var/lib/mock/f42-build-side-1-3589309-46957/root/chroot_tmpdir/scmroot/vdr-osd2web'...
$ git fetch origin 23350af0f88f16997ca86923b0d7090841f2ee1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-osd2web
 * [new ref]         23350af0f88f16997ca86923b0d7090841f2ee1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23350af Rebuilt for new VDR API version 2.7.4