$ git clone -n https://src.fedoraproject.org/rpms/classification-banner.git /var/lib/mock/f45-build-4171-330/root/chroot_tmpdir/scmroot/classification-banner
Cloning into '/var/lib/mock/f45-build-4171-330/root/chroot_tmpdir/scmroot/classification-banner'...
$ git fetch origin 8f6c3d84263a83069dec10fc88a6499c63fc91d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/classification-banner
 * [new ref]         8f6c3d84263a83069dec10fc88a6499c63fc91d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f6c3d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild