Bug#941217: asterisk: pjsip show contacts displays double entries for each contact

[Duke]

Package: asterisk
Version: 1:16.2.1~dfsg-1+deb10u1
Severity: normal

Dear Maintainer,

The CLI command "pjsip show contacts" shows two entries for each
contact. For example:

CLI> pjsip show contacts

 Contact:  203/sip:203 at 192.168.0.18:62133;transport=TLS    b07e4532df
Avail       33.264
 Contact:  203/sip:203 at 192.168.0.18:62133;transport=TLS    b07e4532df
Avail       33.264
 Contact:  205/sip:205 at 192.168.0.12:62388;transport=TLS    6d01f45c82
Avail       32.755
 Contact:  205/sip:205 at 192.168.0.12:62388;transport=TLS    6d01f45c82
Avail       32.755

Objects found: 4

The normal behavior is to show each contact once, as the Asterisk
Development Team has already corrected in version 16.6.0-rc2 (res_pjsip:
fix more contacts of the same contact in "pjsip show contacts". -
ASTERISK-28228)

-- System Information:
Debian Release: 10.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-6-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages asterisk depends on:
ii  adduser                  3.118
ii  asterisk-config          1:16.2.1~dfsg-1+deb10u1
ii  asterisk-core-sounds-en  1.6.1-1
ii  asterisk-modules         1:16.2.1~dfsg-1+deb10u1
ii  libc6                    2.28-10
ii  libcap2                  1:2.25-2
ii  libedit2                 3.1-20181209-1
ii  libjansson4              2.12-1
ii  libpopt0                 1.16-12
ii  libsqlite3-0             3.27.2-3
ii  libssl1.1                1.1.1c-1+0~20190710.13+debian10~1.gbp359e02
ii  libsystemd0              241-7~deb10u1
ii  liburiparser1            0.9.1-1
ii  libuuid1                 2.33.1-0.1
ii  libxml2                  2.9.9+dfsg-1+0~20190914.4+debian10~1.gbp3b6674
ii  libxslt1.1               1.1.32-2.1~deb10u1
ii  lsb-base                 10.2019051400

Versions of packages asterisk recommends:
ii  asterisk-moh-opsound-gsm                         2.03-1
ii  asterisk-voicemail [asterisk-voicemail-storage]  1:16.2.1~dfsg-1+deb10u1
ii  sox                                              14.4.2+git20190427-1

Versions of packages asterisk suggests:
pn  asterisk-dahdi   <none>
pn  asterisk-dev     <none>
ii  asterisk-doc     1:16.2.1~dfsg-1+deb10u1
pn  asterisk-ooh323  <none>
ii  asterisk-opus    13.7+20171009-2
pn  asterisk-vpb     <none>

-- no debconf information