Force query cache to not persist between requests

(fix #1534)

application/src/Service/EntityManagerFactory.php

@@ -52,10 +52,11 @@ public function __invoke(ContainerInterface $serviceLocator, $requestedName, arr
             $isDevMode = self::IS_DEV_MODE;
         }
 
+        $arrayCache = new ArrayCache();
         if (extension_loaded('apcu') && !$isDevMode) {
             $cache = new ApcuCache();
         } else {
-            $cache = new ArrayCache();
+            $cache = $arrayCache;
         }
 
         // Set up the entity manager configuration.
@@ -64,6 +65,10 @@ public function __invoke(ContainerInterface $serviceLocator, $requestedName, arr
         );
         $emConfig->setProxyDir(OMEKA_PATH . '/application/data/doctrine-proxies');
 
+        // Force non-persistent query cache, workaround for issue with SQL filters
+        // that vary by user, permission level
+        $emConfig->setQueryCacheImpl($arrayCache);
+
         // Use the underscore naming strategy to preempt potential compatibility
         // issues with the case sensitivity of various operating systems.
         // @see http://dev.mysql.com/doc/refman/5.7/en/identifier-case-sensitivity.html