From 2c51c555a6a2a53d6d05a7b0a9e4208984972212 Mon Sep 17 00:00:00 2001
From: Mitar <mitar.git@tnode.com>
Date: Wed, 5 Aug 2020 12:34:10 -0700
Subject: [PATCH] refactor: Copy all values when sanitizing

---
 request.go      | 4 ++--
 request_test.go | 7 +++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/request.go b/request.go
index 276411218..2a51b48f6 100644
--- a/request.go
+++ b/request.go
@@ -186,8 +186,8 @@ func (a *Request) Sanitize(allowedParameters []string) Requester {
 	b.ID = a.GetID()
 	b.Form = url.Values{}
 	for k := range a.Form {
-		if _, ok := allowed[k]; ok {
-			b.Form.Add(k, a.Form.Get(k))
+		if allowed[k] {
+			b.Form[k] = a.Form[k]
 		}
 	}
 
diff --git a/request_test.go b/request_test.go
index b1b674e5d..21be33258 100644
--- a/request_test.go
+++ b/request_test.go
@@ -92,7 +92,7 @@ func TestSanitizeRequest(t *testing.T) {
 		GrantedScope:   []string{"asdf"},
 		Form: url.Values{
 			"foo": []string{"fasdf"},
-			"bar": []string{"fasdf", "fasdf"},
+			"bar": []string{"fasdf", "faaaa"},
 			"baz": []string{"fasdf"},
 		},
 		Session: new(DefaultSession),
@@ -100,13 +100,16 @@ func TestSanitizeRequest(t *testing.T) {
 
 	b := a.Sanitize([]string{"bar", "baz"})
 	assert.NotEqual(t, a.Form.Encode(), b.GetRequestForm().Encode())
+
 	assert.Empty(t, b.GetRequestForm().Get("foo"))
 	assert.Equal(t, "fasdf", b.GetRequestForm().Get("bar"))
+	assert.Equal(t, []string{"fasdf", "faaaa"}, b.GetRequestForm()["bar"])
 	assert.Equal(t, "fasdf", b.GetRequestForm().Get("baz"))
 
+	assert.Equal(t, "fasdf", a.GetRequestForm().Get("foo"))
 	assert.Equal(t, "fasdf", a.GetRequestForm().Get("bar"))
+	assert.Equal(t, []string{"fasdf", "faaaa"}, a.GetRequestForm()["bar"])
 	assert.Equal(t, "fasdf", a.GetRequestForm().Get("baz"))
-	assert.Equal(t, "fasdf", a.GetRequestForm().Get("foo"))
 }
 
 func TestIdentifyRequest(t *testing.T) {