Problem with minus help and for-in

[jviney]

This used to work on 7.2.0, and broke in 7.2.1.

  it('should support for-in with variable', async function () {
    const src = '{% assign total = 3 | minus: 1 %}' +
      '{% for i in (1..total) %}{{ i }}{% endfor %}'
    const html = await liquid.parseAndRender(src, {})
    return expect(html).to.equal('12')
  })

Instead of looping up to 2, it now loops up to 20. Seems to be multiplying by 10 for some reason.