$ git clone -n https://src.fedoraproject.org/rpms/emacs-rinari.git /var/lib/mock/f45-build-8125-377/root/chroot_tmpdir/scmroot/emacs-rinari
Cloning into '/var/lib/mock/f45-build-8125-377/root/chroot_tmpdir/scmroot/emacs-rinari'...
$ git fetch origin 78c3db5ff4c604cc79cef95e04f452aece2b6a99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-rinari
 * [new ref]         78c3db5ff4c604cc79cef95e04f452aece2b6a99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78c3db5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild