jaredatch/Custom-Metaboxes-and-Fields-for-WordPress — pull request #98 by joehoyle (2012-01-22 17:51:06+00:00)
Title: Allow setting 'multiple'

When using a custom type for a field, currently you can't set the multiple property so the post meta is stored as different meta rows, instead it is all stored in one array in a single meta entry.