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When a playlist is deleted and drops_references(), any undo/redo StatefulDiffCommand referncing playlist invoke Destructible::drop_references() of the Command. This leads to command_death(). As opposed to UndoTransaction::clear() the StatefulDiffCommand was not destroyed. In case of playlists StatefulDiffCommand::_changes contains PBD::SequenceProperty<std::list<boost::shared_ptr<Region> > > and shared pointer reference of the playlist regions were kept indefinitely. This fixes the following scenario: New session, import an file, delete the created track, clean up unused sources (delete unused playlists)[, quit]. A reference to the imported region was kept, because of the playlist's undo command (insert region). Yet the source file was deleted. PS. Most playlist changes are accompanied by GUI zoom/selection MementoCommands. Those are currently never directly dropped. command_death() leaves those in place. |
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| .. | ||
| appleutility | ||
| ardour | ||
| ardouralsautil | ||
| audiographer | ||
| backends | ||
| canvas | ||
| clearlooks-newer | ||
| evoral | ||
| fluidsynth | ||
| fst | ||
| gtkmm2ext | ||
| hidapi | ||
| libltc | ||
| lua | ||
| midi++2 | ||
| panners | ||
| pbd | ||
| plugins | ||
| ptformat | ||
| qm-dsp | ||
| surfaces | ||
| temporal | ||
| vamp-plugins | ||
| vamp-pyin | ||
| vfork | ||
| waveview | ||
| widgets | ||
| zita-convolver | ||
| zita-resampler | ||