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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
```
self.relospec.pool = resource_pool
                linked_clone = self.params.get('linked_clone')
                snapshot_src = self.params.get('snapshot_src', None)
                if linked_clone:
                    if snapshot_src is not None:
                        self.relospec.diskMoveType = vim.vm.RelocateSpec.DiskMoveOptions.createNewChildDiskBacking
                    else:
                        self.module.fail_json(msg="Parameter 'linked_src' and 'snapshot_src' are"
                                                  " required together for linked clone operation.")
                clonespec = vim.vm.CloneSpec(template=self.params['is_template'], location=self.relospec)
                if self.customspec:
                    clonespec.customization = self.customspec
                if snapshot_src is not None:
                    if vm_obj.snapshot is None:
                        self.module.fail_json(msg="No snapshots present for virtual machine or template [%(template)s]" % self.params)
                    snapshot = self.get_snapshots_by_name_recursively(snapshots=vm_obj.snapshot.rootSnapshotList,
                                                                      snapname=snapshot_src)
                    if len(snapshot) != 1:
                        self.module.fail_json(msg='virtual machine "%(template)s" does not contain'
                                                  ' snapshot named "%(snapshot_src)s"' % self.params)
                    clonespec.snapshot = snapshot[0].snapshot
                clonespec.config = self.configspec
                clone_method = 'Clone'
                try:
                    task = vm_obj.Clone(folder=destfolder, name=self.params['name'], spec=clonespec)
                except vim.fault.NoPermission as e:
                    self.module.fail_json(msg="Failed to clone virtual machine %s to folder %s "
                                              "due to permission issue: %s" % (self.params['name'],
                                                                               destfolder,
                                                                               to_native(e.msg)))