Box selection in orthographic view ports with nothing previously selected will select BSP brushes even when you are not passing over edges or vertices. The current expected behavior is that it would only select brushes when their edges or vertices are in the selection box. Currently we're seeing it select BSP brushes simply by passing over the faces of the brush (which aren't even visible to the user)

Steps to Reproduce

1. Have a map with multiple brushes that are overlapping
2. Attempt to box select one brush without selecting edges or verts

All brushes beneath that selection box will be selected

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Affects Versions4.7
Target Fix4.8
Fix Commit2450195
CreatedFeb 13, 2015
ResolvedFeb 18, 2015
UpdatedApr 27, 2018