More usage of dbm::is_result($r) instead of count($r):

- count() returns very different results and never a boolean (not even false on
  error condition).
- therefore you should NOT use it in boolean expressions. This still *can* be
  done in PHP because of its lazyness. But it is discouraged if it comes to
  more clean code.

Signed-off-by: Roland Häder <roland@mxchange.org>

object/Item.php

@@ -235,7 +235,7 @@ class Item extends BaseObject {
 					intval($item['uid']),
 					intval($item['id'])
 				);
-				if (count($r)) {
+				if (dbm::is_result($r)) {
 					$ignore = array(
 						'do' => t("ignore thread"),
 						'undo' => t("unignore thread"),