Xcode 9 asset catalog Preserves Vector Data not working?

Question

I thought the new Preserves Vector Data checkmark in the Xcode 9 asset catalog would finally give us resizing of vector PDF images, but apparently not. Here\'s my test image

Answer 1

Edit: Still the same buggy behavior in Xcode 9 GM (9A235)

As of today (Xcode 9 beta 6 9M214v), the image will only be rendered properly (non-blurry) if the UIImageView has at least 3 spacing-related constraints.

eg. spacing to left, spacing to right, spacing to top, and another constraint to define the UIImageView height.

Note also that disabling autolayout completely will make all the UIImageView render incorrectly.

I filled rdar://34306192 (http://www.openradar.me/radar?id=4968083747766272) for this bug.