BF: Check plugin_args is not None before accessing it like a dict.
BF: Check plugin_args is not None before accessing it like a dict.

iglpdc/nipype,mick-d/nipype,mick-d/nipype,dgellis90/nipype,JohnGriffiths/nipype,FCP-INDI/nipype,carlohamalainen/nipype,wanderine/nipype,FredLoney/nipype,pearsonlab/nipype,mick-d/nipype,rameshvs/nipype,dmordom/nipype,sgiavasis/nipype,dmordom/nipype,gerddie/nipype,dmordom/nipype,arokem/nipype,wanderine/nipype,arokem/nipype,JohnGriffiths/nipype,mick-d/nipype_source,iglpdc/nipype,iglpdc/nipype,blakedewey/nipype,FredLoney/nipype,glatard/nipype,carolFrohlich/nipype,FCP-INDI/nipype,carolFrohlich/nipype,dgellis90/nipype,JohnGriffiths/nipype,pearsonlab/nipype,sgiavasis/nipype,rameshvs/nipype,arokem/nipype,fprados/nipype,rameshvs/nipype,JohnGriffiths/nipype,glatard/nipype,dgellis90/nipype,mick-d/nipype_source,sgiavasis/nipype,blakedewey/nipype,Leoniela/nipype,gerddie/nipype,grlee77/nipype,carolFrohlich/nipype,arokem/nipype,rameshvs/nipype,iglpdc/nipype,carlohamalainen/nipype,Leoniela/nipype,carlohamalainen/nipype,blakedewey/nipype,sgiavasis/nipype,wanderine/nipype,grlee77/nipype,carolFrohlich/nipype,FCP-INDI/nipype,gerddie/nipype,mick-d/nipype_source,Leoniela/nipype,mick-d/nipype,grlee77/nipype,pearsonlab/nipype,blakedewey/nipype,pearsonlab/nipype,wanderine/nipype,fprados/nipype,FredLoney/nipype,glatard/nipype,gerddie/nipype,FCP-INDI/nipype,dgellis90/nipype,fprados/nipype,glatard/nipype,grlee77/nipype