Possible Bug? Annotation bleeds to ticks area on zoom-in

When I zoom-in the anotation in my plot bleeds into the y axix ticks area.
Is that intended or it is a bug?

Zoom-in Anotation bug

http://codepen.io/dkolev8/pen/vxwdpm

Thatโ€™s intention. We allow annotations to span our of the plot area (given that the arrow tip is still visible). But yeah, maybe a clipping option would make sense in some situations. Thanks for pointing this out.