dotted user numbers not working in reports

I created a show file in v3.2 with compound fixtures. Unfortunately the report function does not give the expected result when a query contains a dotted user number. The result is empty...
When i opened the show file in v3.3 the same problem occurred.
Workaround was to renumber the dotted user numbers to 'normal' numbers. The query then gave the expected results.

Grtz,
Pepijn