fix params with stringified keys that are part of the URL getting appended to query

[balvig]

What

Before

Base.with("recipes/:recipe_id/image").where("recipe_id" => 1).to_a
# => GET /recipes/1/image?recipe_id=1

After

Base.with("recipes/:recipe_id/image").where("recipe_id" => 1).to_a
# => GET /recipes/1/image

[coveralls]

Coverage increased (+0.001%) to 99.641% when pulling 0d18043 on jb/fix-params-with-stringified-keys-that-are-part-of-t into e83847d on main.