restore will not remove properties that were added since the last backup #607
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daffl
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Dec 20, 2013
restore will not remove properties that were added since the last backup
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restore will not remove properties that were added since the last backup
Per http://canjs.com/docs/can.Map.backup.prototype.restore.html
This is never the behavior I would want from backup/restore. In restore,
this._attrs(props);could be called with 'true' as the second argument to remove new properties, and that could be an optional attribute on restore.