[Bug 1867705] Update Released

[Brian Murray]

The verification of the Stable Release Update for ubuntustudio-controls
has completed successfully and the package is now being released to
-updates.  Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1867705

Title:
  [SRU] ubuntustudio-controls crashed with TypeError in __init__():
  Argument 1 does not allow None as a value

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