[FIXED JENKINS-8917] Plugin Manager incorrectly displays "Changes will take...

[FIXED JENKINS-8917] Plugin Manager incorrectly displays "Changes will take effect when you restart Jenkins".

changelog.html

@@ -63,6 +63,9 @@ Upcoming changes</a>
     (<a href="http://issues.jenkins-ci.org/browse/JENKINS-8865">issue 8865</a>)
   <li class=rfe>
     thread dump now reports all the threads from all the slaves, not just the master.
+  <li class=bug>
+    Plugin Manager incorrectly displays "Changes will take effect when you restart Jenkins".
+    (<a href="http://issues.jenkins-ci.org/browse/JENKINS-8917">issue 8917</a>)
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/resources/hudson/PluginManager/installed.jelly

@@ -138,7 +138,7 @@ THE SOFTWARE.
 
         function updateMsg() {
           <!-- is anything changed since its original state? -->
-          var e = $A($('plugins').getElementsByTagName('input')).find(function(e) {
+          var e = $A(Form.getInputs('plugins', 'checkbox')).find(function(e) {
             return String(e.checked)!=e.getAttribute('original');
           });