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##### SUMMARY

Two vmware modules uses `copy()` to duplicate an internal instance of a pyvmomi object. This to be able to modify the object during an iteration.

- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_guest.py#L788
- https://github.com/ansible/ansible/blob/622a493ae03bd5e5cf517d336fc426e9d12208c7/lib/ansible/modules/cloud/vmware/vmware_datastore_facts.py#L220

As explain here, https://github.com/ansible/ansible/pull/60196/files#r312643761 this is not the best approach and this may impact the performance.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME

vmware

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
devel
```
byEntity = vim.event.EventFilterSpec.ByEntity(entity=vm, recursion="self")
        filterSpec = vim.event.EventFilterSpec(entity=byEntity, eventTypeId=eventTypeIdList)
        eventManager = self.content.eventManager
        return eventManager.QueryEvent(filterSpec)
    def wait_for_customization(self, vm, poll=10000, sleep=10):
        thispoll = 0
        while thispoll <= poll:
            eventStarted = self.get_vm_events(vm, ['CustomizationStartedEvent'])
            if len(eventStarted):
                thispoll = 0
                while thispoll <= poll:
                    eventsFinishedResult = self.get_vm_events(vm, ['CustomizationSucceeded', 'CustomizationFailed'])
                    if len(eventsFinishedResult):
                        if not isinstance(eventsFinishedResult[0], vim.event.CustomizationSucceeded):
                            self.module.fail_json(msg='Customization failed with error {0}:\n{1}'.format(
                                eventsFinishedResult[0]._wsdlName, eventsFinishedResult[0].fullFormattedMessage))
                            return False
                        break
                    else:
                        time.sleep(sleep)
                        thispoll += 1
                return True
            else:
                time.sleep(sleep)
                thispoll += 1
        self.module.fail_json('waiting for customizations timed out.')
        return False
def main():