$ git clone -n https://src.fedoraproject.org/rpms/autogen.git /var/lib/mock/f41-build-762751-13458/root/chroot_tmpdir/scmroot/autogen
Cloning into '/var/lib/mock/f41-build-762751-13458/root/chroot_tmpdir/scmroot/autogen'...
$ git fetch origin 186422ef916cfe98261ddff84b6823ba9f789740:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/autogen
 * [new ref]         186422ef916cfe98261ddff84b6823ba9f789740 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 186422e Eliminate use of obsolete %patchN syntax (#2283636)