Bug 36082: Set branchcode correctly in opac-facets.inc

Bug 36082: Set branchcode correctly in opac-facets.inc

1. Tools> HTML Customization
2. Choose OPACresultssidebar
3. Create an entry specific to a library.
4. Also try to add this same entry into a translation tab, if installed.
5. Go to the OPAC
6. Login as a patron of that library that the specific OPACresultsidebar is assigned to
7. Search the catalog, and look below the facets,where the OPACresultssidebar would appear.
8. No text.
9. APPLY PATCH
10. Try step 7 again.
11. TEXT!

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit ae975f9eca011473205c2261bc5b45ae4a89b980)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>