Grid spacing classes force horizontal scroll when grid items wrap

When using our grid spacing classes responsively, they force a horizontal scroll when wrapping. This is the smallest example that will trigger this.

<div class="grid gs64 fw-wrap">
    <div class="grid--cell">
        This cell has dynamic content that ought to wrap with the window
    </div>
    <div class="grid--cell">
        This cell has dynamic content that ought to wrap with the window
    </div>
    <div class="grid--cell">
        This cell has dynamic content that ought to wrap with the window
    </div>
    <div class="grid--cell">
        This cell has dynamic content that ought to wrap with the window
    </div>
    <div class="grid--cell">
        This cell has dynamic content that ought to wrap with the window
    </div>
</div>

At smaller window sizes, this forces a horizontal scroll.

Workaround

You can add an overflow-x-hidden to your parent for now, but we ought to solve the underlying issue.

Start by reproducing the supplied grid markup at smaller window sizes and inspect the grid spacing classes used by grid gs64 fw-wrap. Done means wrapped grid items no longer force horizontal scrolling without relying on the overflow-x-hidden workaround.