Bug: Correct "a part" flagged, wrong "apart" suggested

[hippietrail]

Description

Certain instance of the phrase "a part" gets flagged to change into "apart".

spinning its wheels and here's a part where refers to [sic]

Harper is generally overzealous in replacing arbitrary pairs of words with unrelated single words that happen to be exact concatenations of the word pair.

In this case it's worse because this is already a mistake people made and I've already filed a feature request to flag it. And because the terms are opposites in a sense: two things can't be very far apart if one of the things is a part of the other.

It's also wrong to call the results a "compound noun". This should only happen when both parts are nouns, or at a bare minimum when the final part is a noun. In this case it's not even a compound of "a" and "part", it's purely coincidence. And "apart" is not a noun at all. It's usually an adverb and secondarily an adjective.

Resources

If the problem is not obvious, some online resources clarifying the relevant grammar point can be useful.

Screenshots