Fixed merge_organisations permission check

src/Controller/OrganisationController.php

@@ -363,7 +363,7 @@ class OrganisationController extends SimpleController
         $currentUser = $this->ci->currentUser;
 
         // Access-controlled page
-        if (!$authorizer->checkAccess($currentUser, 'merge_organisation')) {
+        if (!$authorizer->checkAccess($currentUser, 'merge_organisations')) {
             throw new ForbiddenException();
         }
 
@@ -733,7 +733,7 @@ class OrganisationController extends SimpleController
         $translator = $this->ci->translator;
 
         // Access-controlled resource - check that currentUser has permission to merge organisations.
-        if (!$authorizer->checkAccess($currentUser, 'organisation_merge')) {
+        if (!$authorizer->checkAccess($currentUser, 'merge_organisations')) {
             throw new ForbiddenException();
         }