To search for issues with opened checklists (not all checklist items completed).
Type in JQL: "Smart Checklist Progress" ~ "-Done"
To search for issues with ALL completed checklists
Type in JQL: "Smart Checklist Progress" ~ "Done"
To search for all issues that contain checklists on your instance:
Type in in JQL: "Checklists" (or cf[CustomFieldID]) is not EMPTY
To search for checklists containing specific items:
Type in in JQL: "Checklists" (or cf[CustomFieldID]) ~ "your item value":
NB! At this moment, searching for Jira issues where a specific checklist item has completed/ incompleted status is unavailable. This happens due to the following limitation: Jira does not index the special character of - and +