$ git clone -n https://src.fedoraproject.org/rpms/vdr-osdteletext.git /var/lib/mock/f42-build-864189-172199/root/chroot_tmpdir/scmroot/vdr-osdteletext
Cloning into '/var/lib/mock/f42-build-864189-172199/root/chroot_tmpdir/scmroot/vdr-osdteletext'...
$ git fetch origin 70c8c7759652de72577f4580faf1637e325c21cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-osdteletext
 * [new ref]         70c8c7759652de72577f4580faf1637e325c21cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70c8c77 Rebuilt for new VDR API version 2.7.2