Exhibit View - Label argument is url encoded (but it shouldn't be)

I am generating a feed where I need to specify label in this format
exhibit/views/threads?label=node_title

When I type this url in browser, it generates a JSON feed as desired. After that, I define this into an exhibit feed for including into an exhibit node.

This exhibit node generates error
We cannot locate the data file
http://www.pico-car.com/exhibit/views/threads%3Flabel%3Dnode_title
Check that the file name is correct.

As you can see, the ? and = are url encoded and hence it can not find the data.