after active tab is unloaded the first tab is selected as active

CHANGELOG

 minerva (12.2.1) stable; urgency=medium
   * Bug fix: export of reaction colorsi in SBML is properly encoded (COPASI can
     read colors properly) (#744) 
+  * Bug fix: removing active plugin didn't switch plugin tab to the next loaded 
+    plugin (#757)
 
  -- Piotr Gawron <piotr.gawron@uni.lu>  Mon, 1 Apr 2019 17:00:00 +0200
 

frontend-js/src/main/js/gui/leftPanel/GuiUtils.js

@@ -1175,6 +1175,13 @@ GuiUtils.prototype.removeTab = function (abstractGuiElement, panel) {
   } else {
     logger.warn("Cannot find tab for panel: " + panel);
   }
+  var isActive = $(".nav-tabs > li.active", $(abstractGuiElement.getElement())).length > 0;
+  if (!isActive) {
+    var links = $(".nav-tabs > li", $(abstractGuiElement.getElement()));
+    if (links.length > 0) {
+      $("a", $(links[0])).click();
+    }
+  }
 };
 
 /**