fix history bug with nonactive changesetviewer tab

scm-webapp/src/main/webapp/resources/js/repository/sonia.repository.changesetviewerpanel.js

@@ -122,6 +122,7 @@ Sonia.History.register('changesetviewer', function(params){
     var tab = Ext.getCmp(id);
     
     if ( tab ){
+      main.getMainTabPanel().setActiveTab(id);
       tab.loadChangesets(start, pageSize);
     } else {  
       Ext.Ajax.request({

scm-webapp/src/main/webapp/resources/js/sonia.scm.js

@@ -486,6 +486,10 @@ Sonia.scm.Main = Ext.extend(Ext.util.Observable, {
       document.head.appendChild(css);
       this.stylesheets.push(url);
     }
+  },
+  
+  getMainTabPanel: function(){
+    return this.mainTabPanel;
   }
 
 });