I can't test this because despite https://github.com/joomla/jissues/compare/fix/dismissed?expand=1#diff-7556531a1ad8f82503521b2e86695d92R363

I get

[2018-02-18 21:50:20] JTracker.ERROR: Database query failed (error #1364): Field 'labels' doesn't have a default value; Failed query: INSERT INTO `jos_issues` (`issue_number`,`project_id`,`title`,`description`,`description_raw`,`status`,`opened_date`,`opened_by`,`modified_date`,`modified_by`,`pr_head_user`,`pr_head_ref`,`pr_head_sha`,`build`) VALUES  ('19717','1','[4.0] Airbnb ECMAScript 2017 (ES6) Coding Standards for the files in directory build/build-modules-js','<body_text_removed_for_github>','1','2018-02-18 12:06:19','astridx','2018-02-18 21:05:39','dgt41','astridx','j4_airbnb/es6/codingstandards','a5e1ac26547c70cecdaecdbfbd7c9cb94542e2d8','staging') {"code":1364,"message":"Field 'labels' doesn't have a default value","sql":"INSERT INTO `jos_issues`\n(`issue_number`,`project_id`,`title`,`description`,`description_raw`,`status`,`opened_date`,`opened_by`,`modified_date`,`modified_by`,`pr_head_user`,`pr_head_ref`,`pr_head_sha`,`build`) VALUES \n('19717','1','[4.0] Airbnb ECMAScript 2017 (ES6) Coding Standards for the files in directory build/build-modules-js','<body_text_removed_for_github>','1','2018-02-18 12:06:19','astridx','2018-02-18 21:05:39','dgt41','astridx','j4_airbnb/es6/codingstandards','a5e1ac26547c70cecdaecdbfbd7c9cb94542e2d8','staging')"} []