Noto Serif Roman is missing subscript numbers

[chrissimpkins]

We received a user report that the Noto Serif family is missing subscript numbers.

 ‎U+2081 SUBSCRIPT ONE
 ‎U+2082 SUBSCRIPT TWO
 ‎U+2083 SUBSCRIPT THREE

It looks like this may be in the Roman only based on my test of the current production front end:

I can confirm that they are present in the latest download zip archive variable font files from Fonts:

Perhaps a subsetter definition issue?

[simoncozens]

Indeed, these codepoints are not defined in any subset.

[chrissimpkins]

Wonder why they show up in the italic?

[grande1900]

Also to add (as the one who submitted the user report), they reappear on page reload and disappear once you refresh the preview boxes by highlighting them; which is why they appeared in the original screenshot. This is definitely a subsetter issue and not one particular to Noto Serif Roman.