notification (image update, gmail, calls) displayed twice

push client logs

Thanks for reporting this. When it happens again, could you please paste the output of

  gdbus call --session --dest com.canonical.indicator.messages --object-path /com/canonical/indicator/messages/phone --method org.gtk.Menus.Start [0,1]

This is to find out whether the service thinks there are two messages (due to a bug or because something has posted two messages) or unity falsely shows two messages when there's actually only one.

Also, please attach ~/.cache/upstart/indicator-messages.log.

Status changed to 'Confirmed' because the bug affects multiple users.

It just happened for a system update notification. Here is the output (slightly reindented) that shows 2 identical x-canonical-message-actions sections:

$ gdbus call --session --dest com.canonical.indicator.messages --object-path /com/canonical/indicator/messages/phone --method org.gtk.Menus.Start [0,1]
([
(uint32 0, uint32 0, [{'action': <'indicator.messages'>, 'action-namespace': <'indicator'>, 'x-canonical-type': <'com.canonical.indicator.root'>, ':submenu': <(uint32 1, uint32 0)>}]),
(1, 0, [{':section': <(uint32 1, uint32 1)>}, {':section': <(uint32 1, uint32 2)>}, {':section': <(uint32 1, uint32 3)>}]),
(1, 1,
[
{'x-canonical-message-actions': <<@aa{sv} []>>, 'target': <true>, 'x-canonical-time': <int64 1439206717000000>, 'x-canonical-type': <'com.canonical.indicator.messages.messageitem'>, 'x-canonical-app-icon': <('file', <'file:///usr/share/ubuntu/settings/system/system-settings.png'>)>, 'x-canonical-message-id': <'7f97870a-2d8658-2d4da9-2d819f-2d3f503499bc4f'>, 'label': <'Il existe une image du système à jour.'>, 'icon': <('file', <'file:///usr/share/ubuntu/settings/system/icons/settings-system-update.svg'>)>, 'x-canonical-text': <'Appuyez pour ouvrir le gestionnaire de mise à jour du système.'>, 'x-canonical-subtitle': <''>, 'action': <'ubuntu-system-settings.msg.7f97870a-2d8658-2d4da9-2d819f-2d3f503499bc4f'>},
{'x-canonical-message-actions': <<@aa{sv} []>>, 'target': <true>, 'x-canonical-time': <int64 1439206717000000>, 'x-canonical-type': <'com.canonical.indicator.messages.messageitem'>, 'x-canonical-app-icon': <('file', <'file:///usr/share/ubuntu/settings/system/system-settings.png'>)>, 'x-canonical-message-id': <'7f97870a-2d8658-2d4da9-2d819f-2d3f503499bc4f'>, 'label': <'Il existe une image du système à jour.'>, 'icon': <('file', <'file:///usr/share/ubuntu/settings/system/icons/settings-system-update.svg'>)>, 'x-canonical-text': <'Appuyez pour ouvrir le gestionnaire de mise à jour du système.'>, 'x-canonical-subtitle': <''>, 'action': <'ubuntu-system-settings.msg.7f97870a-2d8658-2d4da9-2d819f-2d3f503499bc4f'>}
]
),
(1, 3, [{'action': <'remove-all'>, 'label': <'Tout effacer'>, 'x-canonical-type': <'com.canonical.indicator.button'>}])
],)

There is no log file named indicator-messages.log (only old archived files)