$ git clone -n https://src.fedoraproject.org/rpms/cdcollect.git /var/lib/mock/f41-build-710858-13023/root/chroot_tmpdir/scmroot/cdcollect
Cloning into '/var/lib/mock/f41-build-710858-13023/root/chroot_tmpdir/scmroot/cdcollect'...
$ git fetch origin 7be8e605333ec8e4e6cb844281fbe2bd332d38a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cdcollect
 * [new ref]         7be8e605333ec8e4e6cb844281fbe2bd332d38a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7be8e60 Eliminate use of obsolete %patchN syntax (#2283636)