$ git clone -n https://src.fedoraproject.org/rpms/binutils.git /var/lib/mock/f42-build-861757-170339/root/chroot_tmpdir/scmroot/binutils
Cloning into '/var/lib/mock/f42-build-861757-170339/root/chroot_tmpdir/scmroot/binutils'...
$ git fetch origin 3f77f370f12ab99868b34be51944740af962ad27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/binutils
 * [new ref]         3f77f370f12ab99868b34be51944740af962ad27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f77f37 Spec File: Move all gprofng files into the binutils-gprofng sub-package. Resolves: 2326286