Include all Invoice and Person subclasses as indexed_models.
Include all Invoice and Person subclasses as indexed_models.

gaapt/bookyt,silvermind/bookyt,silvermind/bookyt,gaapt/bookyt,hauledev/bookyt,silvermind/bookyt,xuewenfei/bookyt,xuewenfei/bookyt,gaapt/bookyt,xuewenfei/bookyt,hauledev/bookyt,hauledev/bookyt,huerlisi/bookyt,wtag/bookyt,huerlisi/bookyt,silvermind/bookyt,hauledev/bookyt,huerlisi/bookyt,wtag/bookyt,gaapt/bookyt,wtag/bookyt