Bug 7472 Edit button ineffective when paying borrower fee

Bug 7472 Edit button ineffective when paying borrower fee

On payment page, the Edit button doesn't load anymore the current
borrower edit page.

To reproduce the bug:

- Define a borrower category 'foo' with Enrollment fee
- Create a new 'foo' borrower
- Click on Check out tab
- A message is displayed: Fees & Charges: Patron has Outstanding fees &
  charges of xx.00. Checkouts are BLOCKED because fine balance is OVER
  THE LIMIT. Make Payment
- Click on Payment link
- Click on Edit button
- You reach a page for creating a new borrower
  => you should reach the current borrower edition page

- Same issue on paycollect.tt template

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>