Prevent double decoding of % in url params

integrations/gitea-repositories-meta/user2/utf8.git/refs/heads/Plus+Is+Not+Space

@@ -1 +1 @@
-3a810dbf6b96afaa8c5f69a8b6ec1dabfca7368b
+59e2c41e8f5140bb0182acebec17c8ad9831cc62

integrations/nonascii_branches_test.go

@@ -6,6 +6,7 @@ package integrations
 
 import (
 	"net/http"
+	"net/url"
 	"path"
 	"testing"
 
@@ -159,6 +160,41 @@ func TestNonasciiBranches(t *testing.T) {
 			to:     "tag/%D0%81/%E4%BA%BA",
 			status: http.StatusOK,
 		},
+		{
+			from:   "Plus+Is+Not+Space/%25%252525mightnotplaywell",
+			to:     "branch/Plus+Is+Not+Space/%25%252525mightnotplaywell",
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/%25253Fisnotaquestion%25253F",
+			to:     "branch/Plus+Is+Not+Space/%25253Fisnotaquestion%25253F",
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/" + url.PathEscape("%3Fis?and#afile"),
+			to:     "branch/Plus+Is+Not+Space/" + url.PathEscape("%3Fis?and#afile"),
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/10%25.md",
+			to:     "branch/Plus+Is+Not+Space/10%25.md",
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/" + url.PathEscape("This+file%20has 1space"),
+			to:     "branch/Plus+Is+Not+Space/" + url.PathEscape("This+file%20has 1space"),
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/" + url.PathEscape("This+file%2520has 2 spaces"),
+			to:     "branch/Plus+Is+Not+Space/" + url.PathEscape("This+file%2520has 2 spaces"),
+			status: http.StatusOK,
+		},
+		{
+			from:   "Plus+Is+Not+Space/" + url.PathEscape("£15&$6.txt"),
+			to:     "branch/Plus+Is+Not+Space/" + url.PathEscape("£15&$6.txt"),
+			status: http.StatusOK,
+		},
 	}
 
 	defer prepareTestEnv(t)()

modules/context/context.go

@@ -609,6 +609,10 @@ func Contexter() func(next http.Handler) http.Handler {
 			var locale = middleware.Locale(resp, req)
 			var startTime = time.Now()
 			var link = setting.AppSubURL + strings.TrimSuffix(req.URL.EscapedPath(), "/")
+
+			chiCtx := chi.RouteContext(req.Context())
+			chiCtx.RoutePath = req.URL.EscapedPath()
+
 			var ctx = Context{
 				Resp:    NewResponse(resp),
 				Cache:   mc.GetCache(),