To Test
1. Hit the page /cgi-bin/koha/admin/matching-rules.pl
2. Click on new record matching rule
3. Add a text in the field Description that contain js.
4. Save the page.
5. Notice js is execute
6. Apply patch and reload, the js is escaped
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de> Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>