fix dup raising of error
fix dup raising of error

jesperkristensen/jsforce,joeferraro/jsforce,pcon/jsforce,parthiban019/jsforce,lkatney/jsforce,saleswise/jsforce,rdietrick/jsforce,jdcrensh/jsforce,lkatney/jsforce,nutthawan/jsforce,saleswise/jsforce,pcon/jsforce,saleswise/jsforce,bhaskarmelkani/jsforce,jsforce/jsforce,pcon/jsforce,nutthawan/jsforce,parthiban019/jsforce,jsforce/jsforce,bhaskarmelkani/jsforce,jdcrensh/jsforce,jsforce/jsforce,kimchouard/jsforce,jesperkristensen/jsforce,joeferraro/jsforce