fix: ensure jet bindings use non-nil context

Author: ReneWerner87

jet/jet.go

@@ -191,15 +191,15 @@ func (e *Engine) Render(out io.Writer, name string, binding interface{}, layout
 
 func jetVarMap(binding interface{}) jet.VarMap {
 	if binding == nil {
-		return nil
+		return make(jet.VarMap)
 	}
 
 	if bind, ok := binding.(jet.VarMap); ok {
 		return bind
 	}
 
 	data := core.AcquireViewContext(binding)
-	bind := make(jet.VarMap)
+	bind := make(jet.VarMap, len(data))
 	for key, value := range data {
 		bind.Set(key, value)
 	}

template.go

@@ -144,7 +144,7 @@ func AcquireViewContext(binding interface{}) map[string]interface{} {
 	}
 
 	val := reflect.ValueOf(binding)
-	if val.Kind() == reflect.Pointer {
+	if val.Kind() == reflect.Ptr {
 		if val.IsNil() {
 			return make(map[string]interface{})
 		}