Wifi Connection applet does not connect or save passwords with a comma

I clicked on the WiFi connection applet, selected an access point, entered in a password that contained a comma, clicked Connect, then nothing happened. There was no error or attempt to connect. When trying to connect again, the previous password with a comma was not saved. However, incorrect password attempts that don't contain a comma are saved. The applet is nm-applet.

When using nm-connection-editor, I can save the password that contains a comma. The next time I try to connect with the applet, the connection succeeds without prompting for a password.

The problem is that I can't use the applet to enter in the password with a comma. I must use the connection editor.

This was on Lubuntu. The WiFi access point was 2.4 GHz and used a WPA ASCII password that contains a comma.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager-gnome 1.2.0-0ubuntu0.16.04.4
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic i686
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: i386
CurrentDesktop: LXDE
Date: Wed Sep 21 21:55:00 2016
ExecutablePath: /usr/bin/nm-applet
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-08-28 (24 days ago)
InstallationMedia: Lubuntu 16.04.1 LTS "Xenial Xerus" - Release i386 (20160720)
IpRoute:

NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH
 Azga 3fdaab0a-41b0-40a7-87ea-e8304b9307ba 802-11-wireless 0 never yes 0 no /org/freedesktop/NetworkManager/Settings/3 no -- -- --
 Wired connection 1 287c02d4-c43e-4f98-8cf8-a823c49d7b30 802-3-ethernet 1474514522 Wed 21 Sep 2016 09:22:02 PM MDT yes 4294966297 no /org/freedesktop/NetworkManager/Settings/2 no -- -- --
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlp1s0 wifi disconnected /org/freedesktop/NetworkManager/Devices/2 -- -- --
 enp2s1 ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.2.0 disconnected started none enabled enabled enabled enabled enabled