$ git clone -n https://src.fedoraproject.org/rpms/emacs-hcl-mode.git /var/lib/mock/f45-build-8091-376/root/chroot_tmpdir/scmroot/emacs-hcl-mode
Cloning into '/var/lib/mock/f45-build-8091-376/root/chroot_tmpdir/scmroot/emacs-hcl-mode'...
$ git fetch origin 68d6ce413498734e34529e7f0e234e8b013eb86e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-hcl-mode
 * [new ref]         68d6ce413498734e34529e7f0e234e8b013eb86e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68d6ce4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild