2 files changed, 8 insertions, 4 deletions
diff --git a/program/include/rcube_cache.php b/program/include/rcube_cache.php
index e5011854b..299e655dd 100644
--- a/program/include/rcube_cache.php
+++ b/program/include/rcube_cache.php
@@ -464,10 +464,13 @@ 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, $this->index)) !== false) {
diff --git a/program/include/rcube_session.php b/program/include/rcube_session.php
index 6916e2ba8..e00401f2c 100644
--- a/program/include/rcube_session.php
+++ b/program/include/rcube_session.php
@@ -315,7 +315,8 @@ class rcube_session
   public function mc_destroy($key)
   {
     if ($key) {
-      $this->memcache->delete($key);
+      // #1488592: use 2nd argument
+      $this->memcache->delete($key, 0);
     }
 
     return true;