Index: kernel/db/db_event_handler.php
===================================================================
--- kernel/db/db_event_handler.php	(revision 13377)
+++ kernel/db/db_event_handler.php	(working copy)
@@ -1611,6 +1611,9 @@
 					foreach ($rec['DependentFields'] as $field_name => $field_value) {
 						// will be "ci|ItemResourceId:345"
 						$to_increment[] = $rec['Prefix'] . '|' . $field_name . ':' . $field_value;
+
+						// also reset sub-item prefix general serial
+						$to_increment[] = $rec['Prefix'];
 					}
 
 					unset($changes[$index]['DependentFields']);
@@ -1624,6 +1627,10 @@
 				$to_increment[] = $change['MasterPrefix'] . '|' . $change['MasterId'];
 
 				if ($change['MasterPrefix'] != $change['Prefix']) {
+					// also reset sub-item prefix general serial
+					$to_increment[] = $change['Prefix'];
+
+					// will be "ci|ItemResourceId"
 					$to_increment[] = $change['Prefix'] . '|' . $change['ItemId'];
 				}
 			}
@@ -1633,9 +1640,13 @@
 			$this->Application->incrementCacheSerial($this->Prefix);
 
 			foreach ($to_increment as $to_increment_mixed) {
-				list ($to_increment_prefix, $to_increment_id) = explode('|', $to_increment_mixed, 2);
-
-				$this->Application->incrementCacheSerial($to_increment_prefix, $to_increment_id);
+				if (strpos($to_increment_mixed, '|') !== false) {
+					list ($to_increment_prefix, $to_increment_id) = explode('|', $to_increment_mixed, 2);
+					$this->Application->incrementCacheSerial($to_increment_prefix, $to_increment_id);
+				}
+				else {
+					$this->Application->incrementCacheSerial($to_increment_mixed);
+				}
 			}
 
 			// save changes to database