Invalidate query parameters when replacing URLs.

Assisted-By: devx/cbdeae41-9308-4071-ad53-58cd92db2946

Author: samuel-williams-shopify

lib/utopia/request.rb

@@ -163,6 +163,7 @@ def ip
 		# @parameter url [Protocol::URL::Absolute | Protocol::URL::Relative | String | Nil] The request URL.
 		def url= url
 			@url = Protocol::URL[url]
+			@query_parameters = nil
 		end
 
 		# Build a derived request with updated protocol fields.

test/utopia/request.rb

@@ -61,6 +61,14 @@
 		}
 	end
 
+	it "invalidates decoded query parameters when replacing the URL" do
+		expect(request.query_parameters).to have_keys("q", "tag")
+		
+		request.url = "/search?query=hello+world"
+		
+		expect(request.query_parameters).to be == {"query" => "hello world"}
+	end
+	
 	it "distinguishes absent and empty query values" do
 		request.url = "/search?absent&empty="