Extra line break added when adding expand macro

Summary

In Confluence page when users edit a page with expand macros, extra line breaks automatically appear between the first expand macro and second expand macro.

Environment

• Confluence version 1000.340.2

Steps to Reproduce

1. Disable Collaborative Editing plugin
2. Create a page with 2 expand macros
3. Save the page
4. Enable Collaborative Editing
5. Go to the page created in step 2

Actual Results

Extra line break automatically added

Expected Results

No extra line break between the macro.