$ git clone -n https://src.fedoraproject.org/rpms/lksctp-tools.git /var/lib/mock/f41-build-1022234-18059/root/chroot_tmpdir/scmroot/lksctp-tools
Cloning into '/var/lib/mock/f41-build-1022234-18059/root/chroot_tmpdir/scmroot/lksctp-tools'...
$ git fetch origin 3b20a7f659d2726149134704dc9d36168a206b49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lksctp-tools
 * [new ref]         3b20a7f659d2726149134704dc9d36168a206b49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b20a7f Eliminate use of obsolete %patchN syntax (#2283636)