After bug 1953174, the order of the strings is not broken when pasting, but the content is still not exactly the same as the original text., but Chrome is also different after copy-pasting (comment #18).
Bug 1876887 Comment 23 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
After bug 1953174, the order of the strings is not broken when pasting, but the content is still not exactly the same as the original text., but Chrome also has different result as the original text after copy-pasting (comment #18).