cubicweb-dataio #3911730 CW-3.19 [validation pending]

fix code for CW-3.19

prioritynormal
typetask
done in0.6.0
load3.000
load left0.000
closed by#e8097e5ab74b [dataimport] MassiveObject: use new API (connection and eid generator) of CW-3.19
patch[dataimport] MassiveObject: use new API (connection and eid generator) of CW-3.19 [applied]