Cores ignored when building ova with vmware-iso

Everything works perfect and I get my working .ova file in the end. There is just one little thing and it is the cores option in the builders section, it looks like it is ignored when starting the .ova. No matter what I set it to during build the ova is imported with 1 core / cpu. The cpus option works.
Am I doing something wrong? Is it a bug?

Doing a “head -50 packer_build.ova” reveals this section:

rasd:AllocationUnitshertz * 10^6</rasd:AllocationUnits>
rasd:DescriptionNumber of Virtual CPUs</rasd:Description>
rasd:ElementName2 virtual CPU(s)</rasd:ElementName>
rasd:InstanceID1</rasd:InstanceID>
rasd:ResourceType3</rasd:ResourceType>
rasd:VirtualQuantity2</rasd:VirtualQuantity>
<vmw:CoresPerSocket ovf:required=“false”>4</vmw:CoresPerSocket>

Cheers
Andreas