$ git clone -n https://src.fedoraproject.org/rpms/vdr-tvscraper.git /var/lib/mock/f40-build-790142-136346/root/chroot_tmpdir/scmroot/vdr-tvscraper
Cloning into '/var/lib/mock/f40-build-790142-136346/root/chroot_tmpdir/scmroot/vdr-tvscraper'...
$ git fetch origin 96d4daf3e8f22ac79a0acec97a2d33ceb18f33e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vdr-tvscraper
 * [new ref]         96d4daf3e8f22ac79a0acec97a2d33ceb18f33e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96d4daf Update to 1.2.7