Revert "avoid recursion when deepcopying classe with get_attr"
Revert "avoid recursion when deepcopying classe with get_attr"

This reverts commit 3d8e7dc8e48716d0e72933e47a06611d5b0d07b0.

dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq