test fix for thin disk type issue

lib/ansible/modules/cloud/vmware/vsphere_guest.py

@@ -790,6 +790,7 @@ def update_disks(vsphere_client, vm, module, vm_disk, changes):
 
     for cnf_disk in vm_disk:
         disk_id = re.sub("disk", "", cnf_disk)
+        disk_type = vm_disk[cnf_disk]['type']
         found = False
         for dev_key in vm._devices:
             if vm._devices[dev_key]['type'] == 'VirtualDisk':
@@ -821,7 +822,10 @@ def update_disks(vsphere_client, vm, module, vm_disk, changes):
             backing.DiskMode = "persistent"
             backing.Split = False
             backing.WriteThrough = False
-            backing.ThinProvisioned = False
+            if disk_type == 'thin':
+                backing.ThinProvisioned = True
+            else:
+                backing.ThinProvisioned = False
             backing.EagerlyScrub = False
             hd.Backing = backing
 
@@ -863,6 +867,7 @@ def reconfigure_vm(vsphere_client, vm, module, esxi, resource_pool, cluster_name
 
     changed, changes = update_disks(vsphere_client, vm,
                                     module, vm_disk, changes)
+    vm.properties._flush_cache()
     request = VI.ReconfigVM_TaskRequestMsg()
 
     # Change extra config