discover_services() can return different (and less) results when called multiple times on windows.

[qDot]

Describe the bug

1. On windows 10, connect to a device and call discover_services()
2. Without touching any characteristics, call discover_services() again fairly soon after on the same device

Expected behavior
Nothing should change.

Actual behavior
At least on one device (Satisfyer Curvy 2+), the first call enumerates everything, then the second call loses a bunch of characteristics.