Changed to use as_id_array to convert array types.
Changed to use as_id_array to convert array types.

SiccarPoint/landlab,csherwood-usgs/landlab,laijingtao/landlab,Carralex/landlab,amandersillinois/landlab,SiccarPoint/landlab,cmshobe/landlab,ManuSchmi88/landlab,amandersillinois/landlab,RondaStrauch/landlab,RondaStrauch/landlab,csherwood-usgs/landlab,ManuSchmi88/landlab,laijingtao/landlab,cmshobe/landlab,RondaStrauch/landlab,landlab/landlab,cmshobe/landlab,Carralex/landlab,landlab/landlab,landlab/landlab,ManuSchmi88/landlab,Carralex/landlab