Fix #2601

[dead-claudia]

Description

Fix issue where ending a stream in the middle of a stream callback would result in erroneous parent stream state for the rest of that emit.

Motivation and Context

Fixes #2601

How Has This Been Tested?

Added a new test to verify the fix.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation change

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated docs/change-log.md

[jaydh]

Thanks for writing the test cases :)

One concern, if you clone the list but have one stream end a subsequent stream then I think you'll enter a similar situation.
If o1 ends o2, the cloned list will still execute o2

[dead-claudia]

@jaydh Not after this patch. I forgot to add tests for it, but that should account for that particular case.