[Bug 1632964] [NEW] Regression: systemd does not send all queued DBus Signals when a unit gets inactive

[seahawk1986]

Public bug reported:

Since the penultimate systemd package update in september (229-4ubuntu8)
systemd does not send the remaining queued DBus signals (e.g.
PropertiesChanged) when a unit's state changes to inactive.

Sending those signals has been working since the release of Ubuntu 16.04
and it is quite unfortunate for my use case this got broken while fixing
another bug.

Adding this upstream change to the package restores the old
functionality (a patch for the current systemd package (systemd
229-4ubuntu10) for xenial is attached):
https://github.com/systemd/systemd/commit/0dd99f86addd1f81e24e89807b6bc4aab57d5793

----
$ lsb_release -rd
Description:    Ubuntu 16.04.1 LTS
Release:        16.04
----
package version: systemd 229-4ubuntu10

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

** Patch added: "Patch for systemd-229-4ubuntu10"
   https://bugs.launchpad.net/bugs/1632964/+attachment/4760206/+files/fix-send-queued-messages.diff

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https://bugs.launchpad.net/bugs/1632964

Title:
  Regression: systemd does not send all queued DBus Signals when a unit
  gets inactive

Status in systemd package in Ubuntu:
  New

Bug description:
  Since the penultimate systemd package update in september
  (229-4ubuntu8) systemd does not send the remaining queued DBus signals
  (e.g. PropertiesChanged) when a unit's state changes to inactive.

  Sending those signals has been working since the release of Ubuntu
  16.04 and it is quite unfortunate for my use case this got broken
  while fixing another bug.

  Adding this upstream change to the package restores the old
  functionality (a patch for the current systemd package (systemd
  229-4ubuntu10) for xenial is attached):
  https://github.com/systemd/systemd/commit/0dd99f86addd1f81e24e89807b6bc4aab57d5793

  ----
  $ lsb_release -rd
  Description:    Ubuntu 16.04.1 LTS
  Release:        16.04
  ----
  package version: systemd 229-4ubuntu10

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