query malformed on exposed views involving OR operator (solution proposed)

There is a problem with the formation of the query in the case of exposed views involving the OR operator.

I propose the following solution (expressed as diff, I haven't rolled a patch until you think it is the best solution):

$ diff dompdf_ori.module dompdf.module
65c67,68
<             $query .= "filter$key=". $filter['filter'] ."&";
---
>             $filter_value = ($filter['op'] == 'OR')?$filter['filter'][0]:$filter['filter'];
>             $query .= "filter$key=". $filter_value  ."&";