$ git clone -n https://src.fedoraproject.org/rpms/ftplib.git /var/lib/mock/f41-build-749044-13368/root/chroot_tmpdir/scmroot/ftplib
Cloning into '/var/lib/mock/f41-build-749044-13368/root/chroot_tmpdir/scmroot/ftplib'...
$ git fetch origin 808429624a5e649b95fe4d14cef89de4d63c8f41:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ftplib
 * [new ref]         808429624a5e649b95fe4d14cef89de4d63c8f41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8084296 Eliminate use of obsolete %patchN syntax (#2283636)