x[a.header]++
					}
					latestCount = 0
					for k, v := range x {
						if v < latestCount {
							continue
						}
						if v == latestCount && latest.header.sortsBefore(k) {
							// Tiebreak, use sort.
							continue
						}
						for _, a := range tops {
							hdr := a.header
							if !strict {
								hdr.Signature = [4]byte{}
							}
							if hdr == k {