I have noticed that the Jira ticket issue description text could be inaccurately fetched when they contain characters that must be escaped like < lt; (lesser than) and > gt; (greater than) and maybe also & & (ampersand) but I did not see this one.
In this example post onebox, pointing to a Jira ticket, <person> and <group> have been removed from the text:
Has/had member should default to
<person>was a member of<group>
To become:
Has/had member should default to was a member of
I wanted to see if I could improve this Jira onebox but I didn’t find the code.