Insert id for unique user group share rows

lib/public/share.php

@@ -871,6 +871,7 @@ class Share {
 				// Insert an extra row for the group share if the item or file target is unique for this user
 				if ($itemTarget != $groupItemTarget || (isset($fileSource) && $fileTarget != $groupFileTarget)) {
 					$query->execute(array($itemType, $itemSource, $itemTarget, $parent, self::$shareTypeGroupUserUnique, $uid, $uidOwner, $permissions, time(), $fileSource, $fileTarget));
+					\OC_DB::insertid('*PREFIX*share');
 				}
 			}
 			if ($parentFolder === true) {