We are using the unique regex custom field plugin in one of our projects. We have set the jql query in such a way that only unique values could be added to that field while creating an issue., This is working successfully while creating issues. But when I imported some issues, the field is accepting duplicate values also. After the import the values in that field contains duplicate values too.
Could you please check why this happens since the filed is supposed to contain only unique values. Screen-shot attached.