How do I reload a model in ember js

I have something like this in function

@setProperties {page: 1, sort_attribute: @get('sort_attribute') || '', sort_order: @get('sort_order') || '', jobs_filters: JSON.stringify jobs_filters }

so the issue is, it's not firing the call to server if nothing changes in the filters, so how do I can fire a call, irrespective of weather filters are changed or not, or how do can simply reload the model in ember version 1.7.0-beta.1.