Robin Gareus 1d6ee0b7e2 Fix crash when touching stale Automation Points
Undo/Redo allows to change a region's envelope without the envelope-list
changing (AutomationList::StateChanged is not emitted).

This also catches other operations where region-length can change while
the Envelope is visible. -- Normally when using the range or object tool
to modify a Region, the Envelope is not visible.

Without this change it was possible that the GUI shows automation
points that don't have a corresponding libardour representation:

e.g. select range, change tool to "draw", press "s" (split), undo,
click on any region-gain point.
2019-02-15 21:37:19 +01:00
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2013-03-13 14:35:39 -04:00
2017-01-05 09:21:12 +00:00
2016-02-28 21:48:49 +01:00

Please see the Ardour web site at http://ardour.org/ for all documentation..

For information on building ardour: 
      
     http://ardour.org/development.html
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