[dbwg] Multiple same swips in whois output, another bug?

[william at elan.net]

When doing whois on 207.134.171.2, the query returned the most specific
swip twice. Why is this?

[IPv4 whois information on 207.134.171.2 ]
[Query Origin: Main Whois Query ]
[whois.arin.net]
TELUS Communications Inc. TELUS-207-134-0-0 (NET-207-134-0-0-1)
                                  207.134.0.0 - 207.134.255.255
Telus Quebec TELUS-QC-207-134-160-0 (NET-207-134-160-0-1)
                                  207.134.160.0 - 207.134.175.255
Blue Rock Dove BRD-8-207-134-170-0 (NET-207-134-171-0-1)
                                  207.134.171.0 - 207.134.171.127
Blue Rock Dove BRD-8-207-134-170-0 (NET-207-134-171-0-2)
                                  207.134.171.0 - 207.134.171.127