iOS - no data on subscription just before disconnect from device

[TitouanBourveauEXFO]

Describe the bug'
[iOS only]
When the connected device send a data in a notification characteristic just before stopping the connection itself, the subscription in the app doesn't receive the data.

To Reproduce
You need a device that send data just before disconnecting itself.
Steps to reproduce the behavior:

1. Connect to one device using connectTo()
2. Subscribe to a non-protected characteristic
3. The device send data and disconnect right after it

Expected behavior
We must receive the data in the subscription just before the subscription is canceled by the disconnection.

• I tried doing the same with a general BLE scanner application (e.g. nRF Connect) and it exhibits the expected behavior as described above

Smartphone / tablet

• Device: iPhone 15
• OS: iOS 13
• Package version: 5.2.0

Peripheral device

• Vendor, model: CUSTOM
• Does it run a custom firmware / software: yes