fix: pull project with removed notifications

[lazpavel]

Description of changes

• on pull ensure the project has notifications before attempting to retrieve the channels
• fix on re-add notifications if previously removed with a version < 10.4.0

Issue #, if available

Description of how you validated changes

• manual testing
• tests added

Checklist

• PR description included
• yarn test passes
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)
• New AWS SDK calls or CloudFormation actions have been added to relevant test and service IAM policies
• Pull request labels are added

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[yanlin96]

Hi team,

I found an issue on amplify cli 10.4.0 which may be related.

1. firstly creating "amplify add notifications" in one environment for example dev
2. then "amplify env add prod" to create a new environment prod

The error message is "Cannot set property 'Id' of undefined", and if ignore this err and run "amplify push", although command push successfully, the error is in prod "no categorize enabled"

Thanks

[danielleadams]

@yanlin96 - do you mind opening a GitHub Issue for what you are seeing? (https://github.com/aws-amplify/amplify-cli/issues/new/choose) Thanks!

[danielleadams]

👏🏼

[yanlin96]

Hi team,

The new issue opened - #11432

[lgtm-com]

This pull request introduces 1 alert when merging e370a52 into 163ab8f - view on LGTM.com

new alerts:

• 1 for Unused variable, import, function or class

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