From 01772f001a7a16042c52704715b5e17577a47579 Mon Sep 17 00:00:00 2001
From: Clark Winters <clwinters8@gmail.com>
Date: Fri, 25 Nov 2022 19:12:50 -0600
Subject: [PATCH 1/2] bindMap key value should only be set when not already
 present

---
 ctx.go      |  4 +++-
 ctx_test.go | 23 +++++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/ctx.go b/ctx.go
index e07ce30da6..bd4de26188 100644
--- a/ctx.go
+++ b/ctx.go
@@ -1437,7 +1437,9 @@ func (c *Ctx) renderExtensions(bind interface{}) {
 		// Bind view map
 		if c.viewBindMap != nil {
 			for _, v := range c.viewBindMap.D {
-				bindMap[v.Key] = v.Value
+				if _, ok := bindMap[v.Key]; !ok {
+					bindMap[v.Key] = v.Value
+				}
 			}
 		}
 
diff --git a/ctx_test.go b/ctx_test.go
index 0d20898065..c2b2c2d9e6 100644
--- a/ctx_test.go
+++ b/ctx_test.go
@@ -2851,6 +2851,29 @@ func Test_Ctx_RenderWithBind(t *testing.T) {
 
 }
 
+func Test_Ctx_RenderWithOverwrittenBind(t *testing.T) {
+	t.Parallel()
+
+	app := New()
+	c := app.AcquireCtx(&fasthttp.RequestCtx{})
+
+	err := c.Bind(Map{
+		"Title": "Hello, World!",
+	})
+	utils.AssertEqual(t, nil, err)
+	defer app.ReleaseCtx(c)
+	err = c.Render("./.github/testdata/index.tmpl", Map{
+		"Title": "Hello from Fiber!",
+	})
+
+	buf := bytebufferpool.Get()
+	_, _ = buf.WriteString("overwrite")
+	defer bytebufferpool.Put(buf)
+
+	utils.AssertEqual(t, nil, err)
+	utils.AssertEqual(t, "<h1>Hello from Fiber!</h1>", string(c.Response().Body()))
+}
+
 func Test_Ctx_RenderWithBindLocals(t *testing.T) {
 	t.Parallel()
 

From 8aef9dd397075865e889b440b13c7f40b4c3ead9 Mon Sep 17 00:00:00 2001
From: Clark Winters <clwinters8@gmail.com>
Date: Fri, 25 Nov 2022 19:45:15 -0600
Subject: [PATCH 2/2] add comment

---
 ctx.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ctx.go b/ctx.go
index bd4de26188..92d7fad985 100644
--- a/ctx.go
+++ b/ctx.go
@@ -1437,6 +1437,7 @@ func (c *Ctx) renderExtensions(bind interface{}) {
 		// Bind view map
 		if c.viewBindMap != nil {
 			for _, v := range c.viewBindMap.D {
+				// make sure key does not exist already
 				if _, ok := bindMap[v.Key]; !ok {
 					bindMap[v.Key] = v.Value
 				}