fix bad interpolation exemption for volume_size
fix bad interpolation exemption for volume_size

rnaveiras/packer,timsutton/packer,tas50/packer,timsutton/packer,tas50/packer,rnaveiras/packer,paulmey/packer,timsutton/packer,bryson/packer,youhong316/packer,timsutton/packer,tas50/packer,pecigonzalo/packer,mkuzmin/packer,bryson/packer,tas50/packer,bryson/packer,mkuzmin/packer,rnaveiras/packer,rnaveiras/packer,youhong316/packer,youhong316/packer,paulmey/packer,mkuzmin/packer,ricardclau/packer,youhong316/packer,hashicorp/packer,paulmey/packer,dave2/packer,dave2/packer,bryson/packer,dave2/packer,grubernaut/packer,dave2/packer,hashicorp/packer,grubernaut/packer,ricardclau/packer,paulmey/packer,tas50/packer,grubernaut/packer,grubernaut/packer,rnaveiras/packer,pecigonzalo/packer,mitchellh/packer,hashicorp/packer,mitchellh/packer,timsutton/packer,mkuzmin/packer,paulmey/packer,pecigonzalo/packer,hashicorp/packer,youhong316/packer,mitchellh/packer,mitchellh/packer,dave2/packer,mkuzmin/packer,ricardclau/packer,mkuzmin/packer,dave2/packer,youhong316/packer,timsutton/packer,grubernaut/packer,paulmey/packer,ricardclau/packer,pecigonzalo/packer,bryson/packer,mitchellh/packer,bryson/packer,rnaveiras/packer,grubernaut/packer,ricardclau/packer,ricardclau/packer,tas50/packer