AMD and CJS missing default in dynamic import

[dasa]

• Rollup Version: 2.23.0
• Operating System (or Browser): macOS
• Node Version (if applicable):
• Link to reproduction (IMPORTANT, read below):

Rollup REPL

Expected Behavior

The dynamic import in main.js should have a default, but does not. It does work correctly if bar.js is not also an entry module.

When running the original main.js code, the console log is:

foo
main foo

Actual Behavior

When running output AMD or CJS main.js code, the console log is:

foo
main undefined

[lukastaegert]

Thanks for spotting, this was an issue where quite a few things needed to come together. Fix at #3709.

[dasa]

Thanks for the quick fix!