Steps to Reproduce

Run following zul:

<zk>
	<organigram width="600px">
	    <orgchildren>
	        <orgitem label="Item1">
	            <orgchildren>
	                <orgitem>
	                	<orgnode label="Item2">
	                		<textbox/>
	                	</orgnode>
	                </orgitem>
                </orgchildren>
	        </orgitem>
	    </orgchildren>
	</organigram>
</zk>

close the item1 node

Current Result

textbox is unbound, then organigram triggers renrender and tries to bind textbox without a dom node.

Expected Result

lifecyle should prevent binding / unbinding of nodes not existing in dom

Debug Info

Uncaught TypeError: Cannot read property 'value' of undefined
at init.bind_ (zul.inp.wpd:formatted:906)
at init.bindChildren_ (zk.wpd:21173)
at init.bind_ (zk.wpd:21136)
at init.bindChildren_ (zk.wpd:21173)
at init.bind_ (zk.wpd:21136)
at init.$supers (zk.wpd:11786)
at init.bind_ (zkmax.layout.wpd:formatted:5369)
at init.bindChildren_ (zk.wpd:21173)
at init.bind_ (zk.wpd:21136)
at init.bindChildren_ (zk.wpd:21173)
bind_ @ zul.inp.wpd:formatted:906
bindChildren_ @ zk.wpd:21173
bind_ @ zk.wpd:21136
bindChildren_ @ zk.wpd:21173
bind_ @ zk.wpd:21136
$supers @ zk.wpd:11786
bind_ @ zkmax.layout.wpd:formatted:5369
bindChildren_ @ zk.wpd:21173
bind_ @ zk.wpd:21136
bindChildren_ @ zk.wpd:21173
bind_ @ zk.wpd:21136
$supers @ zk.wpd:11786
bind_ @ zkmax.layout.wpd:formatted:5369
bind @ zk.wpd:21054
replaceChildHTML_ @ zk.wpd:20785
replaceHTML @ zk.wpd:20628
rerender @ zk.wpd:20748
_rerender0 @ zk.wpd:18562
setTimeout (async)
_rerender @ zk.wpd:18546
rerender @ zk.wpd:20717
open @ zkmax.layout.wpd:formatted:5354
(anonymous) @ zk.wpd:10071
_toggleOpen @ zkmax.layout.wpd:formatted:5394
doSelect_ @ zkmax.layout.wpd:formatted:5455
_doEvt @ zk.wpd:24969
(anonymous) @ zk.wpd:25169
dispatch @ zk.wpd:5286
elemData.handle @ zk.wpd:4957

Root Cause

Workaround