Server fails with: "error dbus.Store: type mismatch" since release 5.0.4

[boeglid]

The issue was introduced with the update from 5.0.3. to 5.0.4.

Setup: Dbus server with some properties of type slice, e.g.:

MyDbusProp: {
			Value:    []model.MyProp{},
			Writable: true,
			Emit:     prop.EmitTrue,
			Callback: func(c *prop.Change) *dbus.Error {
				return nil
			},
		},

On setting the property from server side the following error occurs: error dbus.Store: type mismatch: slice: cannot convert a value of []model.MyProp into []model.MyProp

Patching the the isConvertbileTo function seemd to solve the issue, see the patched function below:

dbus/dbus.go

Line 116 in e92e1d8

func isConvertibleTo(dest, src reflect.Type) bool {

func isConvertibleTo(dest, src reflect.Type) bool {
	switch {
	case isVariant(dest):
		return true
	case dest.Kind() == reflect.Interface:
		return true
	case dest.Kind() == reflect.Slice:
		return src.Kind() == reflect.Slice &&
			isConvertibleTo(dest.Elem(), src.Elem())
	case dest.Kind() == reflect.Struct:
		// return dest.Kind() == src.Kind()
		return src == interfacesType || dest.Kind() == src.Kind()
	default:
		return src.ConvertibleTo(dest)
	}
}