Unable to call DiscoverServices() when passing a slice of specific UUIDs

[deadprogram]

I was trying to call the DiscoverServices() in order to retrieve only a specific list of services based on the UUIDs. However, it was consistently refusing to return any results.

This is the code that I was attempting to use:

	cbuuids := []cbgo.UUID{}
	for _, u := range uuids {
		uuid, _ := cbgo.ParseUUID(u.String())
		cbuuids = append(cbuuids, uuid)
	}

	d.prph.DiscoverServices(cbuuids)

If I pass an empty slice it returns all services as expected. However, when I try to use a slice of UUID strings, it does not return any results.

Please see tinygo-org/bluetooth#50