$ git clone -n https://src.fedoraproject.org/rpms/kexec-tools.git /var/lib/mock/eln-build-side-110862-59156539-6571362/root/chroot_tmpdir/scmroot/kexec-tools
Cloning into '/var/lib/mock/eln-build-side-110862-59156539-6571362/root/chroot_tmpdir/scmroot/kexec-tools'...
$ git fetch origin 4c7819a6e7a12ef11e017e453c1cb5c8baa76a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kexec-tools
 * [new ref]         4c7819a6e7a12ef11e017e453c1cb5c8baa76a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c7819a Merge #40 `Update rawhide to upstream release 2.0.31`