$ git clone -n https://src.fedoraproject.org/rpms/html-xml-utils.git /var/lib/mock/f45-build-13488-451/root/chroot_tmpdir/scmroot/html-xml-utils
Cloning into '/var/lib/mock/f45-build-13488-451/root/chroot_tmpdir/scmroot/html-xml-utils'...
$ git fetch origin cbd0020ccc37b86bc157084b9aff9b3e130d2dac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/html-xml-utils
 * [new ref]         cbd0020ccc37b86bc157084b9aff9b3e130d2dac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbd0020 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild