[r7363] Platform with [dims=1,1,16] drawn wrongly above a double height slope

[yoshi]

Platforms with [dims=1,1,16] built on a start tile of a bridge above a double height slope and on the adjacent flat tile are drawn wrongly. Please refer to the attached image.

[Dwachs]

should be fixed in r 7735

[yoshi]

Confirmed it's fixed in r7744. Thank you.