make sure the shared ldap connection is rebound to the configured user after...

make sure the shared ldap connection is rebound to the configured user after being used for password checking.

apps/user_ldap/lib/access.php

@@ -898,7 +898,9 @@ class Access extends LDAPUtility {
 		if(!$testConnection->setConfiguration($credentials)) {
 			return false;
 		}
-		return $testConnection->bind();
+		$result=$testConnection->bind();
+		$this->connection->bind();
+		return $result;
 	}
 
 	/**