Details
Description
Two closely related problems:
1) A ticket with a quantity of "0" (rather than blank) appears as a line item in receipts with quantity 0.
2) When the "-none-" option is selected for a price set radio group, it appears in the receipt with a blank item name and unit price, and a quantity of 1.
Both of these cases should be omitted from the receipt entirely.
Discussion on the forums here: http://forum.civicrm.org/index.php?topic=10714