Fix: Unexpected panic from Convert while dstPrt is a pointer to a nil…

… pointer.

conv.go

@@ -837,6 +837,9 @@ func (c *Conv) Convert(src interface{}, dstPtr interface{}) error {
 
 	for dstValue.Kind() == reflect.Ptr {
 		dstValue = dstValue.Elem()
+		if dstValue.Kind() == reflect.Invalid {
+			panic(errForFunction(fnName, "the underlying pointer must be initialized"))
+		}
 	}
 
 	dstTyp := dstValue.Type()

conv_test.go

@@ -1568,6 +1568,23 @@ func TestConv_Convert_panic(t *testing.T) {
 		var p *int
 		_defaultConv.Convert("", p)
 	})
+
+	t.Run("ptr-to-nil-ptr", func(t *testing.T) {
+		defer func() {
+			var err interface{}
+			if err = recover(); err == nil {
+				t.Fatalf("should panic an error")
+			}
+
+			const wantMsg = "conv.Convert: the underlying pointer must be initialized"
+			if err.(error).Error() != wantMsg {
+				t.Fatalf("should panic an error with message: '%v', got '%v'", wantMsg, err)
+			}
+		}()
+
+		var p *int
+		_defaultConv.Convert("", &p)
+	})
 }
 
 func TestConv_Convert_ptr(t *testing.T) {