peripheral.canSendWriteWithoutResponse change to false after enter background

[MrQQQQQQQQQQ]

peripheral.canSendWriteWithoutResponse change to false after enter background,then the in the function : "writeValue(_ data: Data,
for characteristic: Characteristic,
type: CBCharacteristicWriteType,
canSendWriteWithoutResponseCheckEnabled: Bool = true) -> Single". will not send the data.

To Reproduce
Steps to reproduce the behavior:

1. scan and connect to a peripheral, and keep sending datas
2. click Home, Makes the App enter background
3. after several seconds, then will find canSendWriteWithoutResponse property changed to false .
4. Even the App enter Foreground, the property canSendWriteWithoutResponse will never change to true

Expected behavior
canSendWriteWithoutResponse will never change to false

Environment:

• Device: [iPhone7, Macbook Pro 2018]
• OS: [ iOS13.5, macOS 10.15.7]
• Library version [6.0.0]
• Swift version [5.2]

[dariuszseweryn]

Hello,
Are you sure that it is not a system restriction?

[MrQQQQQQQQQQ]

Hello,
Are you sure that it is not a system restriction?

I am not sure if it is a system restriction. but if yes, why the property canSendWriteWithoutResponse won't change to true when i back to foreground. in my app, i used a BLE background mode ,so my app won't be suspend by system.the app can still invoke the write method.but because of this property, it will never really invoke "writeOperationPerformingAndListeningObservable"