Bug 10011: Save branch limitations on creating a new patron category

Bug 10011: Save branch limitations on creating a new patron category

The code was just badly placed.
It should be executed on update but also on insert.

Test plan:
1/ Create a new patron category and select 1+ branch limitations
2/ Confirm it's correctly saved
3/ Edit it and change the branch limitations
4/ Confirm it's correctly saved

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
NOTE: Not a C4 or Koha library, so tests not required. Though,
      this code could be cleaned up and have the DB stuff put
      into some sort of library with tests to prevent regression.
      However, that dream is beyond the scope of this bug.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>