#2 Adjust selector for projectIds

gitlab.user.js

@@ -20,7 +20,7 @@ new TogglButtonGM('.issue-details', function (elem) {
   var description, projectIds = [],
     id = document.querySelector('.detail-page-header .identifier'),
     titleElem = elem.querySelector('.issue-details h2.title'),
-    projectElem = document.querySelector('h1.title'),
+    projectElem = document.querySelector('.breadcrumbs-links > div.title'),
     tagsElem = document.querySelector('.block.labels .has-labels'),
     tags = [];