Fix SMART attribute tracking

Since we've moved to delayed SMART attribute updates we need to set
initial_attributes after we first check the SMART data instead of at
object creation time.

scripts/wk/hw/disk.py

@@ -1,7 +1,6 @@
 """WizardKit: Disk object and functions"""
 # vim: sts=2 sw=2 ts=2
 
-import copy
 import logging
 import pathlib
 import platform
@@ -39,7 +38,7 @@ class Disk:
   children: list[dict] =                field(init=False, default_factory=list)
   description: str =                    field(init=False)
   filesystem: str =                     field(init=False)
-  initial_attributes: dict[Any, dict] = field(init=False)
+  initial_attributes: dict[Any, dict] = field(init=False, default_factory=dict)
   known_attributes: dict[Any, dict] =   field(init=False, default_factory=dict)
   log_sec: int =                        field(init=False)
   model: str =                          field(init=False)
@@ -62,7 +61,6 @@ class Disk:
     self.update_details()
     self.set_description()
     self.known_attributes = get_known_disk_attributes(self.model)
-    self.initial_attributes = copy.deepcopy(self.attributes)
     if not self.is_4k_aligned():
       self.add_note('One or more partitions are not 4K aligned', 'YELLOW')
 

scripts/wk/hw/smart.py

@@ -506,6 +506,10 @@ def update_smart_details(dev) -> None:
   if not updated_attributes:
     dev.add_note('No NVMe or SMART data available', 'YELLOW')
 
+  # Update iniital_attributes if needed
+  if not dev.initial_attributes:
+    dev.initial_attributes = copy.deepcopy(updated_attributes)
+
   # Done
   dev.attributes.update(updated_attributes)