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Segmentation fault with wins in nsswitch.conf

I have this in my /etc/nsswitch.conf:

hosts:      files mdns4_minimal [NOTFOUND=return] dns wins myhostname

Pinging a valid domain works:

$ ping -c1
PING ( 56(84) bytes of data.
64 bytes from ( icmp_seq=1 ttl=57 time=8.17 ms

--- ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 8.176/8.176/8.176/0.000 ms

Pinging a non-existent domain results in a segmentation fault:

$ ping -c1
Segmentation fault

Removing wins from hosts in /etc/nsswitch.conf resolves the issue:

$ ping -c1
ping: Name or service not known

This bug looks to be the same issue:


and has been marked a duplicate of this bug:


which says this has been fixed in Samba 4.5 a few months back, but it's not working for me:

$ smbclient -V
Version 4.5.5

Any idea if there's a solution / workaround to having wins resolution without it causing segmentation faults?