[ECR] [enhancement]: Push fails when image already exists on repository with tag and is immutable

[daveisfera]

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Tell us about your request Currently, a push fails when an image already exists with the given tag, but it would nice for this to be handled more gracefully or at least errored out in a way that it can be distinguished from other issues

Which service(s) is this request for? ECR

Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard? Ability to re-run a deploy of the current build when it failed or re-run deploy tasks in CD so it's possible to rollback to old builds

Are you currently working around this issue? No, just living with it

Additional context Original issue here