Don't strip anchors from suggested fix

[andrewgarner]

Test case:

{
  "suggested_fix": "Link directly to: https://www.gov.uk/world/organisations/department-for-international-trade-canada",
  "warnings": [
    "This redirects too many times and will open slowly."
  ],
  "errors": [],
  "problem_summary": "Bad Redirect",
  "checked": "2018-01-19T10:56:14Z",
  "status": "caution",
  "uri": "https://www.gov.uk/government/world/organisations/uk-trade-investment-canada"
}

Expected suggested fix: https://www.gov.uk/world/organisations/department-for-international-trade-canada#contact-us