Multiple autofill fields on same form

Thanks for your input.

You're right. The reason is, that we only had a single variable var target_field_was_manipulated, that state if a target was manipulated. Actually this needs to be handled per target field.

I changed the javascript to be able to do that. I adopted also your scenario in the tests.

Thanks for a review.

Does this allow autofill from two sources? For example if one wants to autofill from the Firstname and Lastname fields.

I checked the patch and found one small problem.

I have 4 fields: one, one_clone, two and two_clone.

one is mapped to one_clone and two to two_clone.

I type something in one_clone and then into one. No overwrite of one_clone, fine.
I type something into two and nothing is copied to two_clone. That should be because two_clone is still empty.

I extended the test and fixed the bug I found.

I manually tested this using one source and multiple targets and also chaining multiple fields. Works as expected.

I tested patch #6 as well. Thanks for spotting and fixing the bug. It looks alright for me now and got committed.