[Auth] Shared Keychain Unexpectedly Wiped #4076
Description
Describe the bug
We've been made aware of a bug where Shared Keychain usage (using accessGroup) can result in wiping credentials.
On a fresh install, we check a UserDefaults key to see if were in a fresh install. If so, we clear the Keychain, which may have data from a previous install.
This causes an issue where a shared keychain that involves multiple apps / extensions have different UserDefaults. A successful sign in on 1 app instance can get wiped during another app/extension's first launch.
Steps To Reproduce
Steps to reproduce the behavior:
1. Configure shared Keychain usage for an app + share extension
2. Sign in on the app
3. Open share extension for the first time
[BUG] Observe the Keychain has been cleared!Expected behavior
Keychain is not cleared.
Amplify Framework Version
All with Keychain Sharing
Amplify Categories
Auth
Dependency manager
Swift PM
Swift version
N/A
CLI version
N/A
Xcode version
N/A
Relevant log output
<details>
<summary>Log Messages</summary>
INSERT LOG MESSAGES HERE
</details>Is this a regression?
No
Regression additional context
This has been present since accessGroup Keychain sharing was introduced.
Platforms
No response
OS Version
N/A
Device
N/A
Specific to simulators
No response
Additional context
No response