CallbackLookupError in form button action

[Terrence Brannon]

When I click on the Update button in my webapp:

https://gist.github.com/metaperl/e5ce713319e480c09345#file-gistfile1-py-L386

I get the exception CallbackLookupError. 

The Update button is rendered in the 'edit' presentation model of a

BodyTextEditor, which as you can see is explictly set as the model of

the BodyTextEditor instances

https://gist.github.com/metaperl/e5ce713319e480c09345#file-gistfile1-py-L370

I dont know why there would be a callback lookup error, because

`commit_formdata` is defined:

https://gist.github.com/metaperl/e5ce713319e480c09345#file-gistfile1-py-L340

[Terrence Brannon]

I'm pinging this topic - it is still an issue.

[Alain Poirier]

Line #372, ‘BodyTextEditor’ components are created as local objects of the 'render'
function:

c = component.Component(BodyTextEditor(r), model='edit')

So, at the end of the function execution, Python will normally discard them with
their callbacks.

You must keep a reference on the components, for example in their parent.