I understand a new tool form module is rolling out in the next few weeks.  Will 
anything change in the HTML <form> hidden input submit fields?  Right now tool 
forms have the equivalent of:

<form id="tool_form" name="tool_form" action="../../../tool_runner"  
target="galaxy_main" method="post" enctype="application/x-www-form-urlencoded">
        <input type="hidden" name="refresh" value="refresh"/>
        <input type="hidden" name="tool_id" value="bccdcSelectSubsets"/>
        <input type="hidden" name="tool_state" value="3865326638 .... 
1323033303764">
        <input type="hidden" name="input" value="4246"/>                        
        <input type="hidden" name="incl_excl" value="1"/>

... and then on to the visible fields.

Currently one of my galaxy tools "blast_reporting" generates an html report 
(form) which users can view and select items and submit - which calls another 
tool with just the right parameters, as above, including tool_state value which 
is copied once from viewing source of the live target tool form.  2nd tool 
immediately generates the desired dataset.  I know html form approach is a hack 
but it works and it keeps things simple (its never part of a workflow).

However, a nice feature for the new tool form engine would be to have the tool 
state accept an empty value="" for initial submission of forms.  Is that 
possible?  

That way I wouldn't have to bother with one other yucky installation step for 
my blast_reporting tool where one has to manually view source of an instance of 
the target tool (bccdcSelectSubsets above) and retrieve the generic tool_state 
field value setting.  

d.
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