Complex filters don't work properly

[Alex]

I've been trying to set a slightly complex filter for a grid using the Kendo Beta for ASP.net MVC. I've roughly followed steps from here: http://www.kendoui.com/forums/framework/data-source/can-or-be-used-to-filter-a-datasource.aspx#2058189

the results are not as expected. It is also possible to reproduce the problem in the samples (but only in the ASP.net mvc samples). 
If you go to this sample:
http://localhost:xxxxxx/razor/web/grid/ajaxbinding 

Then do the following:

1. Filter Product Name equals Chai
2. Filter Units in Stock > 18
3. Change Product filter to be Chai or Chang

This should logically be (Chai or Chang) && (>18) but is returning the Chang product with a units in stock of 17. The order you apply the filters is important (e.g. if you now set the units in stock filter again you'll get the expected result).

Looking into it it seems that passing the filters from the client side to the server side is losing the nesting of filters, you can even see this in the server binding example where the url contains the filter but there are no parenthesis (or similar).

[Rosen]

Hi Alex,

Indeed, you are correct I observed the described behavior. However, we addressed it and the fix will be available with the official Q2 2012 release of KendoUI. I have also updated your telerik point as token of gratitude for bringing this to our attention.

Greetings,
Rosen
the Telerik team