Pasting multi-level list from clipboard does not work when copied from some other applications

Summary

Pasting multi-level list from clipboard does not work when copied from some other applications

Environment

JIRA 7.11.2
Outlook/Thunderbird

Steps to Reproduce

1. Copy a multi-level list to clipboard from other applications ie: Outlook/Thunderbird
2. Paste it in a JIRA comment
3. Save the comment

Expected Results

Multi-level list appears correctly

Actual Results

Multi-level list appears correctly after pasting, but upon saving the formatting is lost