Merge pull request #25160 from owncloud/fix-oracle-endless-loop-stable9

Do not recurse link share fetching

lib/private/share20/manager.php

@@ -906,6 +906,11 @@ class Manager implements IManager {
 					break;
 				}
 
+				// If there was no limit on the select we are done
+				if ($limit === -1) {
+					break;
+				}
+
 				$offset += $added;
 
 				// Fetch again $limit shares