Stonebrick-Stairs Texture bug depending on N - E - S - W

Yeah, this is the one.
Still in 1.8-pre1.

East, south, and west are the three cardinal directions affected, and southeast and southwest are the two corners affected. Anything north is not affected. But as we learned with the bug in one of the recent snapshots, this may be hard to fix.

Proposed Solution:
Top of lower step (tread) should use image map from bottom face of block not the top.
side of upper step (riser) should likewise use the opposite side image map to that which is currently used.
Q.E.D.

Note: this also applies to stone_slabs in the bottom position the bottom image should also be on the top.

General rule for partial block patterns:

The full, exterior face pattern should show through (the solid half-section) as the interior, parallel face.

A) Defect in texture is inherited from parent stone block.

1) Stone Block texture fix: Inverting the texture (left edge remains on left but top edge become bottom edge) for E - W & S faces of stone block. *Note lower face is already inverted image of upper face.

B) Stairs texture is both direction and upper/lower dependent:

1) North facing stair in lower position: use North face on vertical stair surface and the lower face texture on stairs in lower position.

2) East facing stairs in upper position: Use east face on interior stairs vertical surface user upper face on interior face (horizontal/tread)

This would be best solution without making E & W facing blocks 90 degrees different in texture orientation from N & S block pairs.

Resolving as intended.

The texture of the stone brick stairs is not supposed to rotate to match the top texture of all other stone brick blocks; what you're seeing is the texture not rotating with the stairs (which is clearly stated in the model files), the many lines you see are part of the left/right sides of the texture file. (Go ahead, go to the texture file and rotate it 90 degrees, you'll see what I'm talking about.)