[Zope3-Users] Maintaining data fields on form edit

[Graham Stratton]

I'm using formlib to create an edit form for a schema which contains a 
bytes field (an image).  When the form is submitted, I don't want the 
image to be removed if no new image is uploaded.  I can't see a simple 
way to achieve this, but I'm hoping I'm missing something.

Many thanks,
Graham
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