Minecarts glitch through the stop block of a track that ends with a turn or a downward slope

Normally a rail track terminating with a block will stop a minecart from derailing when it reaches the end, however, when the last piece is a turn or a downward slope, the minecart will turn black, pass into that block, and possibly through the block completely. Tested both directions, all orientations.
How to reproduce: See pictures.