Shipping information checkout pane becomes duplicate shipping service pane [#2289255]

Under a very specific set of conditions, during checkout, if the customer checks and then unchecks the "my shipping information is the same as my billing information" checkbox, a second shipping service form appears instead of the shipping information form.

Steps to reproduce

Basic commerce install with the necessary modules and their dependencies:

commerce_cart
commerce_checkout
commerce_order
commerce_product
commerce_product_ui
commerce_addressbook
commerce_flat_rate

Set up two or more flat rate shipping services
Create a simple product on a simple product page
Shipping information and shipping service checkout panes are on the same checkout page.
The "shipping information" pane is configured to optionally copy from the billing information pane, but not by default
Address book is enabled for the shipping information pane.
As a logged-in user (not anonymous), add the product to your cart, proceed to checkout, and then check and uncheck the "my shipping information is the same as my billing information" checkbox.

Instead of the shipping information form reappearing, a duplicate of the shipping service form appears.

Comment	File	Size	Author
#2	local.drupal.com-addressbook-error.tar_.gz	6.02 MB	bcweaver
	commerce_addressbook_shipping_error.png	47.37 KB	bcweaver

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Comments

Comment #1

bcweaver CreditAttribution: bcweaver commented 19 June 2014 at 16:34

I have created a tarball of a vanilla commerce install which demonstrates the bug.

There is a database dump file in sites/default which can be loaded with drush sqlc < db_20140619_1631.sql
The database name/user/pass are all 'drupal'.
The admin account user:pass is admin:admin
There is a non-privileged account nobody:nobody