Incorrect views_data set for taxonomy term:delta

Problem/Motivation

Taxonomy term :delta filters are assigned the views_handler_filter_term_node_tid handler in taxonomy.views.inc. This causes the taxonomy term value form to be used for the filter, and also actives the extra/Settings form, neither of which apply to the :delta field.

Proposed resolution

Exclude the :delta fields when assigning the views_handler_filter_term_node_tid handler.