$ git clone -n https://src.fedoraproject.org/rpms/wvdial.git /var/lib/mock/f45-build-38539-725/root/chroot_tmpdir/scmroot/wvdial
Cloning into '/var/lib/mock/f45-build-38539-725/root/chroot_tmpdir/scmroot/wvdial'...
$ git fetch origin 3b92fb5b095779e16d1be9e2314588565158b956:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wvdial
 * [new ref]         3b92fb5b095779e16d1be9e2314588565158b956 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b92fb5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild