prevent deletion of playlists on frozen tracks:
authorRobin Gareus <robin@gareus.org>
Fri, 20 Nov 2015 21:57:13 +0000 (22:57 +0100)
committerRobin Gareus <robin@gareus.org>
Fri, 20 Nov 2015 21:58:00 +0000 (22:58 +0100)
commit619727ef73445e8217d78af257e820e46072f10b
tree169553e1ab2970f0baf705d703a00399bb58856f
parent602839ffea8963c8683298bc13a13ac371a1d4b7
prevent deletion of playlists on frozen tracks:

bug:
1) freeze a track
2) Session Cleanup > Cleanup unused sources
2a) confirm playlist deletion
3) quit, reload ->  track is no longer frozen
  because _freeze_record.playlist is missing.
  session is in an odd state.
libs/ardour/audio_track.cc