ping forgets to whom it's talking

Distro: ubuntu 14.04 x64
Package: iputils-ping 3:20121221-4ubuntu1.1

The ping command accidentally uses the information for the last ICMP UNREACHABLE response instead of the host from which the *actual* response came. See the output below:

michael@challenger:~
○ → ping 10gb-sw1
PING 10gb-sw1.office.netdirect.ca (192.168.0.33) 56(84) bytes of data.
From challenger.netdirect.ca (192.168.0.135) icmp_seq=1 Destination Host Unreachable
From challenger.netdirect.ca (192.168.0.135) icmp_seq=2 Destination Host Unreachable
…
From challenger.netdirect.ca (192.168.0.135) icmp_seq=82 Destination Host Unreachable
From challenger.netdirect.ca (192.168.0.135) icmp_seq=86 Destination Host Unreachable
64 bytes from challenger.netdirect.ca (192.168.0.135): icmp_seq=88 ttl=255 time=3.25 ms
64 bytes from challenger.netdirect.ca (192.168.0.135): icmp_seq=89 ttl=255 time=0.737 ms
64 bytes from challenger.netdirect.ca (192.168.0.135): icmp_seq=90 ttl=255 time=1.68 ms
…
64 bytes from challenger.netdirect.ca (192.168.0.135): icmp_seq=96 ttl=255 time=2.83 ms
^C
--- 10gb-sw1.office.netdirect.ca ping statistics ---
96 packets transmitted, 9 received, +56 errors, 90% packet loss, time 95015ms
rtt min/avg/max/mdev = 0.737/2.427/3.966/1.156 ms, pipe 4

michael@challenger:~
○ → ping 10gb-sw1
PING 10gb-sw1.office.netdirect.ca (192.168.0.33) 56(84) bytes of data.
64 bytes from 10gb-sw1.netdirect.ca (192.168.0.33): icmp_seq=1 ttl=255 time=4.34 ms
64 bytes from 10gb-sw1.netdirect.ca (192.168.0.33): icmp_seq=2 ttl=255 time=2.97 ms
64 bytes from 10gb-sw1.netdirect.ca (192.168.0.33): icmp_seq=3 ttl=255 time=2.14 ms
^C
--- 10gb-sw1.office.netdirect.ca ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 2.146/3.156/4.344/0.907 ms

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: iputils-ping 3:20121221-4ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
NonfreeKernelModules: nvidia zfs zunicode zavl zcommon znvpair
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Jun 5 09:50:13 2014
InstallationDate: Installed on 2013-09-09 (268 days ago)
InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
SourcePackage: iputils
UpgradeStatus: Upgraded to trusty on 2014-04-18 (48 days ago)