Highliht diff in Jira issue history.
这些是代码更新过的版本。 显示所有版本
Support history with multiple changes.
Atlassian seems to have straight out removed the side-by-side diff view. This patch attempts to generate the diff based on the previous history entries. It doesn't handle history entries with multiple changes yet.
Thank you, Atlassian.
Debounce handler.
