From The minimum contribution of an item is the outer size that would result from assuming the item’s used minimum size (min-width or min-height, whichever matches the relevant axis) as its preferred size (width or height, whichever matches the relevant axis) if its computed preferred size behaves as auto, or else the item’s min-content contribution otherwise.

The change was done in https://bugzil.la/1462854). In this example, there is no longer a green background in Firefox, but there is in Blink and Edge:

<div style="width: 0px">
  <div style="display: grid; float: left; background: lime">
    <div style="min-width: 0px; width: 100%">content</div>
  </div>
</div>

I just want to confirm whether my understanding of the spec is correct and whether this implication was intentional. In