WSOD ~ Fatal error: Unsupported operand types in /path/to/sites/all/modules/ubercart/uc_order/uc_order.module on line 1459

Full message == Fatal error: Unsupported operand types in /path/to/sites/all/modules/ubercart/uc_order/uc_order.module on line 1459.

This was a show stopper.

Everything seemed to be fine - until I went to checkout some goods and then WSOD. Ok. I could deal with that thinking localised problem.

Then when I went to return to another page the whole site was WSOD.

A quick reversion to RC6 cured this. I am wondering if the jump from RC6 -> 2.0 is the problem?

BTW - Line 1459 is "foreach ($order->products as $product) {"