[IE11] flex-wrap: wrap-reverse standard item-aligning inconsistent with other browser engines

[fspoettel]

When applying flex-wrap: wrap-reverse to a container that has align-items: flex-start set, all other tested browsers (Chrome 41, Firefox 38, Safari 8.0.3, Android 4.4) render the columns with an implicit align-items: flex-end. IE11 renders without this.

Testcase

Applying align-items: flex-end to the container via a scoped media query for IE (see Codepen) makes IE render the same as all other browsers.

Workaround

Bug Report