Not able to input UNICODE characters into issue description on Windows

Summary

It is not possible to input UNICODE characters into issue description on Windows while Linux and Mac OSX have no problem inserting the same string.

Here is the string saved in a file: unicode_string.txt

Environment

Affecting Windows only.

Steps to Reproduce

1. Create or edit the issue description of an issue.
2. Paste the string into the issue description.

Expected Results

The issue description is inputted normally as usual.

Actual Results

You will notice that either JIRA will be loading non-stop or the input of the string will be simply ignored and revert back to the previous issue description.

Notes

Please note that this is happening to issue description, the issue comment has no problem.

Workaround

Paste it in a text editor and explicitly save it to UTF-8 encoding, now you should able to input the string by copy and paste it into the issue description.