woothemes/woocommerce — pull request #4796 by kloon (2014-02-14 11:30:31+00:00)
Title: REST API OAuth signature issue fix when using filter params

When you do a call using filter[] params it gets converted to arrays as soon as you goes through as GET or POST vars which causes OAuth authentication to not work due to normalization errors.

This converts it back to normal string params to generating the signature.

As discussed https://github.com/kloon/WooCommerce-REST-API-Client-Library/issues/1