$ git clone -n https://src.fedoraproject.org/rpms/vdr-scraper2vdr.git /var/lib/mock/f42-build-3408488-45145/root/chroot_tmpdir/scmroot/vdr-scraper2vdr
Cloning into '/var/lib/mock/f42-build-3408488-45145/root/chroot_tmpdir/scmroot/vdr-scraper2vdr'...
$ git fetch origin b0e777a1923e50661b5a76ed788ea1fd617a11bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-scraper2vdr
 * [new ref]         b0e777a1923e50661b5a76ed788ea1fd617a11bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0e777a Rebuilt for new VDR API version 2.7.4