Getting exception on changing locale when customer has opened downloadable products grid from his account

[bhanu-webkul]

Bug report

Title

Getting exception on changing locale when customer has opened downloadable products grid from his account

Issue Description

If customer has opened downloadable products from account section and applied any filter then if he changes locale then getting exception

Preconditions

1. framework Version. - master 

Steps to reproduce

1. step1 - vissit customer account section, click on downloadable products and use any filter 
2. step2 - then change the locale 

Expected result:

same page should be displayed in changed locale

Actual result

getting exception

[vaishaliwebkul]

Fixed in this #3307