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Seleting a block-insert of a very large block could freeze CAD 1.0.8 for several seconds.
This has been fixed by implementing faster methods for:
finding the nearest grip & blip snap
finding the nearest object-crossing snap.
In a typical case, with a DXF hatch block of 16000 objects, the new methods proved to be a
1000 times faster (several seconds became several milliseconds).