Visual bug with capes and stained glass

If you have a cape on, when holding a stained glass (any color), if you open your inventory or press f5 two times and you "overlap" the glass with a visible part of your cape, the glass will not render correctly (it will not render the part which is over the cape).
This doesn't happen with stained glass panes.
In addition, this worked properly in 1.7(.10)