Android GroupId Does Not Work Properly When Passed as Undefined

[sean5940]

The Android GroupId is conditionally provided by the FCM server depending on specific criteria. Looking at the Notification object in Notifee, the GroupId appears to be handled as optional. However, when it is explicitly passed as undefined, it seems to cause an internal error.
Could you please investigate this issue?

Error Message:
ERROR [Error: notifee.displayNotification(*) 'notification.android.groupId' expected a string value.]

[github-actions]

Hello 👋, to help manage issues we automatically close stale issues.

This issue has been automatically marked as stale because it has not had activity for quite some time.Has this issue been fixed, or does it still require attention?

This issue will be closed in 15 days if no further activity occurs.

Thank you for your contributions.