This seems to be related to bug 544287 and bug 555879.
The bug 555879 was about the account_payment_extension problem, and it should already been solved (for the trunk extra-addons) in revid <email address hidden> (http://bazaar.launchpad.net/~openerp-commiter/openobject-addons/trunk-extra-addons/revision/4495.1.1)
This seems to be related to bug 544287 and bug 555879.
The bug 555879 was about the account_ payment_ extension problem, and it should already been solved (for the trunk extra-addons) in revid <email address hidden> (http:// bazaar. launchpad. net/~openerp- commiter/ openobject- addons/ trunk-extra- addons/ revision/ 4495.1. 1)