group-exports aggregating modules should be valid

[atikenny]

I would like to make aggregating modules valid when using the group-exports rule.

Use-case
When aggregating modules in a single file the group-exports rule fails on because of multiple export declarations. This makes it invalid to re-export submodules from the root of a module.

Steps to reproduce

• create a file with the following exports

export { default as module1 } from 'module-1'
export { default as module2 } from 'module-2'

• validate the file using the group-exports rule

Expected results
No linting error.

Actual result
Linting error.

[ljharb]

The specifiers being different should avoid the warning; if you had two of these statements from the same module, it should require you to consolidate them.