RecoverFromDroppedLoginBug 5.4.2 API

All Implemented Interfaces:

com.onesignal.core.internal.startup.IStartableService
```
public final class RecoverFromDroppedLoginBug
 implements IStartableService
                    
```
Purpose: Automatically recovers a stalled User in the OperationRepo due to a bug in the SDK from 5.0.0 to 5.1.7.
Issue: Some calls to OneSignal.login() would not be reflected on the backend and would stall the the queue for that User. This would result in User and Subscription operations to not be processed by OperationRepo. See PR #2046 for more details.
Even if the developer called OneSignal.login() again with the same externalId it would not correct the stalled User.
- Only calling logout() or login() with different externalId would have un-stalled the OperationRepo. And then only after logging back to the stalled user would it have recover all the unsent operations they may exist.

Constructor Summary

Constructors
Constructor	Description
`RecoverFromDroppedLoginBug(IOperationRepo _operationRepo, IdentityModelStore _identityModelStore, ConfigModelStore _configModelStore)`

Method Summary

Modifier and Type	Method	Description
`Unit`	`start()`	Called when the service is to be started.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - RecoverFromDroppedLoginBug
```
RecoverFromDroppedLoginBug(IOperationRepo _operationRepo, IdentityModelStore _identityModelStore, ConfigModelStore _configModelStore)
```
- Method Detail
  - start
```
 Unit start()
```
    Called when the service is to be started. The appId and appContext have already been established.