Say there is a jql in advanced search as follows

project = SCRUM and resolution = Unresolved ORDER BY assignee ASC,affectedVersion ASC

Adding a clause like 'issuetype not in' before ORBER BY, removes all the text that appears after ORDER BY.

To replicate the problem.

1. Move the cursor before ORDER BY clause.
2. Start typing issuetype and select issuetype.
3. Start typing not in and select not in.
4. The entire text after ORDER BY including ORDER BY disappears