Issue Summary

If you populate a paragraph custom field (default renderer) with line breaks, the next time you line breaks will be lost.

Recording: 2025_MacOS_Firefox_line_break.mp4
Right side Browser: Firefox on Mac
Left side Browser: Chrome on Mac

Steps to Reproduce

1. Add a paragraph custom field to an issue screen
2. Make sure the field's renderer is Default Text Renderer
3. Open Jira
4. Populate the paragraph custom field adding some line breaks (Enter)

Expected Results

The content will be displayed just like it was saved.

Actual Results

The line breaks will disappear.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available