Investigation: what happens when two projects have the same name?

[lawndoc]

Had a thought that I wanted to capture for investigation later so I'm making an issue.

What happens when INCLUDE_ALL_COMPOSE_PROJECTS=true and you have multiple projects with the same name?

I expect it will either error (acceptable) or it will potentially overwrite volumes or databases with the same naming scheme (unacceptable).

I want the behavior to be a graceful early exit with a descriptive error message sent to the configured notification provider.