Ha! Good find! Our OP is obtuse, indeed.

It looks like what the OP did was to swap the 5mm spacer originally above the stem to below the stem, and remove a 2.5mm spacer which was also below the stem. Provided that 2.5mm was used above the stem to set the preload and the stem bolts were tightened, the spacer can then be removed and just the top cap installed atop the stem, regardless of whether there’s a gap between it and the stem or not, as it’s primary function is merely aesthetic at that point, although it does serve, as mentioned by cyclezen , as a dust cap and protective cover as well.