Changing common names - common flesh fly

So how does one delete a common name on iNaturalist without replacing it with something else? There are quite a few bogus common names for leaf-mining insects on iNat, which I have not encountered anywhere else, and which have led to all kinds of absurdly wrong IDs. For example, someone gave Sumitrosis rosea the common name “leafminer beetle,” which is not at all helpful when there are over 200 species of leaf-mining beetles in North America alone. As a result there were all sorts of random pictures of leaf mines being identified as this species, most of which weren’t even made by beetles. I tried deleting the name but the system insisted that I replace it with something, so I typed in “one of many leaf-mining beetles,” which stuck for a while. I see that the species now has no common name, so clearly it is possible to simply delete a common name, but I haven’t figured out how to do it.