Chrome Version: 63.0.3230.0 (Official Build) dev (64-bit)
OS: Ubuntu 17.04

What steps will reproduce the problem?
(1) Load https://jsfiddle.net/op6m2cwf/

What is the expected result?
There should be some lime coloring visible. (The div with class="inner" should be 100px tall.)

What happens instead?
No lime is visible. (The div with class="inner" is 0px tall)

Notes:
The lime div (with class="inner") plays the role of a flex item in the outer (vertical) flex container.  This means its default "min-height:auto" gets special treatment which depends on its content size -- and specifically, it should refuse to be any smaller than its content height, even though its 0-height flex container will try to shrink it.
https://drafts.csswg.org/css-flexbox-1/#min-size-auto

But for some reason, Chrome does shrink it.

Firefox 56 and Edge 15 give "expected results".