Using JQL in the issue navigator, if you auto complete a field and go on to try and search another, it will not auto-complete without quotes around the first result.

To Reproduce

• open issue navigator to advanced search
• type assignee= and choose a name to auto-complete
• continue typing query with "AND " to add an additional field

Auto-complete will show the user picker result and not continue to respond to what you're currently typing

Workaround

Make sure to wrap the first result in double quotes