$ git clone -n https://src.fedoraproject.org/rpms/emacs-common-w3m.git /var/lib/mock/f45-build-8247-382/root/chroot_tmpdir/scmroot/emacs-common-w3m
Cloning into '/var/lib/mock/f45-build-8247-382/root/chroot_tmpdir/scmroot/emacs-common-w3m'...
$ git fetch origin d40bae86854a77f857f73ca82d3d635a9432c9e6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-common-w3m
 * [new ref]         d40bae86854a77f857f73ca82d3d635a9432c9e6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d40bae8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild