$ git clone -n https://src.fedoraproject.org/rpms/fusion-icon.git /var/lib/mock/f45-build-9380-403/root/chroot_tmpdir/scmroot/fusion-icon
Cloning into '/var/lib/mock/f45-build-9380-403/root/chroot_tmpdir/scmroot/fusion-icon'...
$ git fetch origin 7846f45c3fad7c76ba1709016d92e86777d36471:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fusion-icon
 * [new ref]         7846f45c3fad7c76ba1709016d92e86777d36471 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7846f45 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild