*** This bug is a duplicate of bug 856284 ***
    https://bugs.launchpad.net/bugs/856284

This might not be duplicate. I noticed that gwibber-service startup has
a huge race issue in the code that tries to prevent starting duplicate
services.

Basic issue in gwibber-serice code is:

1. Check if dbus service is registered.
2. Do some initialization stuff
3. Register dbus service.

This race allows gwibber-service to start multiple instances that would
result to gwibber-service reporting same remote service multiple times.

I'm not dbus expert but I remember dbus providing feature to start
gwibber-service like service automatically on first client requesting
the service. I suppose that could eliminate the race in startup making
it easily possible quarentee single gwibber-service instance per user
login.

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https://bugs.launchpad.net/bugs/606594

Title:
  Multiple instances of Gwibber

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