- Fix parsing ESEARCH (ALL) result and enabling ESEARCH for ordinary searches

program/include/rcube_imap_generic.php

@@ -1611,7 +1611,7 @@ class rcube_imap_generic
 
         // If ESEARCH is supported always use ALL
         // but not when items are specified or using simple id2uid search
-        if (empty($items) && ((int) $criteria != $criteria)) {
+        if (empty($items) && preg_match('/[^0-9]/', $criteria)) {
             $items = array('ALL');
         }
 

program/include/rcube_result_index.php

@@ -100,7 +100,7 @@ class rcube_result_index
 // @TODO: Implement compression using compressMessageSet() in __sleep() and __wakeup() ?
 // @TODO: work with compressed result?!
                     if (isset($this->params['ALL'])) {
-                        $data[$idx] = implode(self::SEPARATOR_ELEMENT,
+                        $data_item = implode(self::SEPARATOR_ELEMENT,
                             rcube_imap_generic::uncompressMessageSet($this->params['ALL']));
                     }
                 }
@@ -111,6 +111,8 @@ class rcube_result_index
             unset($data[$i]);
         }
 
+        $data = array_filter($data);
+
         if (empty($data)) {
             return;
         }