Feature: Is there a dual or unit augmented form (in addition to plural or augmented) for all person categories in the pronoun system?

Feature URL:
http://grambank.clld.org/parameters/GB031
Description

(By Hannah J. Haynie): "A dual or unit augmented form must be present throughout the paradigm (i.e. for all person categories) for this feature to be coded as 1. Both independent pronouns and bound person indexes are to be considered in coding this feature. Inclusive and exclusive categories of first person are not considered separate person categories for the purposes of coding this feature (e.g. if a language has dual number in third, second, and any first person category it is sufficient for triggering a 1). A dual or unit augmented form for a single person category in the paradigm is not sufficient for a 1 code."