fix: wrong when wildcard follows named param (#2983)

tree.go

@@ -535,7 +535,7 @@ walk: // Outer loop for walking the tree
 						// No handle found. Check if a handle for this path + a
 						// trailing slash exists for TSR recommendation
 						n = n.children[0]
-						value.tsr = n.path == "/" && n.handlers != nil
+						value.tsr = (n.path == "/" && n.handlers != nil) || (n.path == "" && n.indices == "/")
 					}
 					return
 

tree_test.go

@@ -595,6 +595,7 @@ func TestTreeTrailingSlashRedirect(t *testing.T) {
 		"/blog/:p",
 		"/posts/:b/:c",
 		"/posts/b/:c/d/",
+		"/vendor/:x/*y",
 	}
 	for _, route := range routes {
 		recv := catchPanic(func() {
@@ -631,6 +632,7 @@ func TestTreeTrailingSlashRedirect(t *testing.T) {
 		"/api/world/abc/",
 		"/blog/pp/",
 		"/posts/b/c/d",
+		"/vendor/x",
 	}
 
 	for _, route := range tsrRoutes {