2 files changed, 8 insertions, 4 deletions
diff --git a/program/include/rcube_cache.php b/program/include/rcube_cache.php
index 018d5f57f..550a148ca 100644
--- a/program/include/rcube_cache.php
+++ b/program/include/rcube_cache.php
@@ -461,10 +461,13 @@ class rcube_cache
      */
     private function delete_record($key, $index=true)
     {
-        if ($this->type == 'memcache')
-            $this->db->delete($this->ckey($key));
-        else
+        if ($this->type == 'memcache') {
+            // #1488592: use 2nd argument
+            $this->db->delete($this->ckey($key), 0);
+        }
+        else {
             apc_delete($this->ckey($key));
+        }
 
         if ($index) {
             if (($idx = array_search($key, $this->index)) !== false) {
diff --git a/program/include/rcube_session.php b/program/include/rcube_session.php
index bd0ce60e4..3e3becb64 100644
--- a/program/include/rcube_session.php
+++ b/program/include/rcube_session.php
@@ -319,7 +319,8 @@ class rcube_session
    */
   public function mc_destroy($key)
   {
-    $ret = $this->memcache->delete($key);
+    // #1488592: use 2nd argument
+    $ret = $this->memcache->delete($key, 0);
     if ($this->mc_debug) write_log('memcache', "delete($key): " . ($ret ? 'OK' : 'ERR'));
     return $ret;
   }