How can I remove leading spaces?

I have a 40 page PDF and I used the Form Wizard to generate fields for me. I noticed that some of the fields have leading spaces in the name. These fields cannot be used via the doc.getField(name) syntax. It simply returns null.
If I manually rename the field and remove the leading space it works, but this would take a long time. Is there any way to programmatically refer to a field with a leading space in the name? Perhaps some sort of escape character for the space? Or can I refer to a field by index instead of name? (For example, I can use doc.getNthFieldName(index) but this just returns the name (with leading space). If I could have something like doc.getNthField(index) that would work too)
Thanks in advance.

A very good question! A leading space in generated form field names is a bug if it afterwards keeps you from getting the field by name (which is the only method?).
I have made an Action in Javascript to loop through all those generated form fields and delete all junk except the two signature fields that were intentional.
Afterwards, I have to manually delete all the fields that have a leading space in their generated name.
Please fix.

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How can I remove leading spaces?

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