I am trying to use a repeatable inside a config.jelly of my jenkins plugin:

<?jelly escape-by-default='true'?>
<j:jelly xmlns:j="jelly:core" xmlns:s="/lib/samples" xmlns:f="/lib/form" 
xmlns:l="/lib/layout">
 <f:entry title="Some Title">
   <f:checkbox title="Enable plugin" field="isMyPluginProject"/>
 </f:entry>
 <f:block>
   <f:repeatable var="item" name="items" items="${instance.items}" 
noAddButton="true" minimum="0">
 <fieldset>
   <f:entry title="My Title" description="Project desc." field="pattern">
     <f:textbox value="${item.pattern}" default="" />
   </f:entry>
 </fieldset>
 <f:repeatableDeleteButton />
 </f:repeatable>
 </f:block>
</j:jelly>

This produces the following javascript error:
Uncaught TypeError: Cannot read property 'hasClassName' of undefined
(anonymous function) @ repeatable.js:112
(anonymous function) @ behavior.js:111
(anonymous function) @ behavior.js:107
Behaviour.applySubtree @ behavior.js:93
Behaviour.apply @ behavior.js:76
(anonymous function) @ behavior.js:71
window.onload @ behavior.js:125
window.onload @ behavior.js:125




The failing codeine is in repeatable.js line 112. It tries to find a div with  
class 'repeatable-insertion-point'.

// do the ones that extract innerHTML so that they can get their original HTML 
before
// other behavior rules change them (like YUI buttons.)
Behaviour.specify("DIV.repeated-container", 'repeatable', -100, function(e) {
        if(isInsideRemovable(e))    return;

        // compute the insertion point
        var ip = $(e.lastChild);
        while (!ip.hasClassName("repeatable-insertion-point"))
            ip = ip.previous();
        // set up the logic
        object(repeatableSupport).init(e, e.firstChild, ip);
});

What am I doing wrong?


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