Possible issues with MODX 2.5.2

[sonicpunk]

After updating to MODX 2.5.2, with SimpleSearch 1.9.2. we are having some issues with its output.

When the user types into the search field the word 'key', the result is

0,-€

In the manager error log we see this:
(ERROR @ /path/to/core/model/modx/modx.class.php : 991) `` is not a valid integer and may not be passed to makeUrl()