Query doesn't work for variant sku

Wildcards do not seem to work for variant sku queries:

query {
  productVariants(first: 10, query: "sku:free*") {
    edges {
      node {
        sku
        title
      }
    }
  }
}

It does work for title, such as:

"title:free*"

Hi Snodgers,

When you do use “title:free*”, what are you seeing returned, and what are you expecting for the SKU wildcard?

Hi Liam!
I have the same issue with Variant’s SKU’s wildcard.

I have some products with SKUSs like TOY01, TOY02, …, TOY10, … TOY500.

While trying to get only products with skus from TOY01 to TOY09 i use that query:

{
  productVariants(first: 250, query:"sku:TOY0*") {
    nodes {
      title
      sku
    }
  }
}

But there is not correct result:

The same query with product titles works fine, but with variants SKU’s looks like broken