Bug 37216: Fix SQL for EmailFieldSelection

Bug 37216: Fix SQL for EmailFieldSelection

Test plan:
Part A: New installation
1. Start a fresh test instance
2. Set EmailFieldPrimary to "selected addresses", and do not touch
    EmailFieldSelection
3. Edit a patron to ensure the following fields are set:
   - Primary email
   - Secondary email
   - Alternate email
   - Enable email notices for item checkout
4. Attempt to check an item out to that patron
--> Koha explodes!
5. Apply patch
6. reset_all
7. Repeat steps 2-4
--> Checkout succeeds!
8. Ensure test plan for bug 12802 still passes

Part B: Upgraded installation
1. Start a fresh test instance at version 23.11
2. Switch to main
3. Install database update
4. Set EmailFieldPrimary to "selected addresses", and do not touch
    EmailFieldSelection
5. Edit a patron to ensure the following fields are set:
   - Primary email
   - Secondary email
   - Alternate email
   - Enable email notices for item checkout
6. Attempt to check an item out to that patron
--> Koha explodes!
7. Go back to 23.11 and reset_all
8. Switch to main and apply patch
9. Repeat steps 4-6
--> Checkout succeeds!
10. Ensure test plan for bug 12802 still passes

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>