$ git clone -n https://src.fedoraproject.org/rpms/binutils.git /var/lib/mock/f40-build-730425-103233/root/chroot_tmpdir/scmroot/binutils
Cloning into '/var/lib/mock/f40-build-730425-103233/root/chroot_tmpdir/scmroot/binutils'...
$ git fetch origin e8094f532eb148aa1225e827cca5b5426f81c379:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/binutils
 * [new ref]         e8094f532eb148aa1225e827cca5b5426f81c379 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8094f5 Add ability to turn execstack warnings into errors. Enable warnings for rsx segments.