Parsing OVFs with ovf:value="0" results in invalid property values

pyvmomni version: v6.7.1.2018-12
python version: v3.6.6

After running ParseDescriptor on an OVF and print out the result I get the following error.

DEBUG:virtutils.vmware:(vim.OvfManager.ParseDescriptorResult) {
   dynamicType = <unset>,
   dynamicProperty = (vmodl.DynamicProperty) [],
   eula = (str) [],
   network = (vim.OvfManager.NetworkInfo) [],
   ipAllocationScheme = (str) [],
   ipProtocols = (str) [],
   property = (vim.vApp.PropertyInfo) [],
   productInfo = <unset>,
   annotation = '',
   approximateDownloadSize = <unset>,
   approximateFlatDeploymentSize = <unset>,
   approximateSparseDeploymentSize = <unset>,
   defaultEntityName = '',
   virtualApp = false,
   deploymentOption = (vim.OvfManager.DeploymentOption) [],
   defaultDeploymentOption = '',
   entityName = (vim.KeyValue) [],
   annotatedOst = <unset>,
   error = (vmodl.MethodFault) [
      (vim.fault.OvfPropertyValue) {
         dynamicType = <unset>,
         dynamicProperty = (vmodl.DynamicProperty) [],
         msg = "Line 42: Invalid property value '0'.",
         faultCause = <unset>,
         faultMessage = (vmodl.LocalizableMessage) [],
         lineNumber = 42,
         type = 'int(0..2147483647)',
         value = '0'
      }
   ],
   warning = (vmodl.MethodFault) []
}

Line 42 of the OVF looks as follow

      <Property ovf:key="elasticsearch.disk.size" ovf:qualifiers="MinValue(0)" ovf:type="int"  ovf:userConfigurable="true" ovf:value="0">

In this case, 0 is a valid value (and deploying to the same rig through the UI doesn't show any errors).

Start by tracing ParseDescriptor handling of OVF property values and validation of the MinValue(0) qualifier, using the line 42 example to reproduce the failure. Done means an ovf:type="int" property with ovf:value="0" and MinValue(0) is accepted without an invalid property error.