When running the QA tools on register.tt (tt?) there are some warnings we should fix: Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 86. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 86. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 87. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 87. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 88. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 158. Argument "" isn't numeric in multiplication (*) at /kohadevbox/koha/koha-tmpl/intranet-tmpl/prog/en/modules/pos/register.tt line 288.
Hmm.. I have no idea how to fix this.. there's already handling in the relevant Object methods to return numeric 0 if there's no lines to total up.