8730984c70
Source (i.e. other) mesh should not be modified in any case in modifier evaluation case (this is forbidden by design and can lead to all kind of threaded locks and crashes), and doing so even in operator case was never a good idea either. Now that we can specifically request needed data (poly and/or loop normals) from evaluation code, we can finally get rid of those computations inside data transfer/mesh remapping area. This is hopefully the last remaining bit of this 'bad crashing code' in datatransfer area.