Load and serialize container ID and name properly: not in metadata

We shouldn't write the name or ID, who are now in the metadata.
Also we should load the name and ID properly from the file.

Contributes to issue CURA-4243.

plugins/XmlMaterialProfile/XmlMaterialProfile.py

@@ -133,6 +133,8 @@ class XmlMaterialProfile(InstanceContainer):
         metadata.pop("type", "")
         metadata.pop("base_file", "")
         metadata.pop("approximate_diameter", "")
+        metadata.pop("id", "")
+        metadata.pop("container_type", "")
 
         ## Begin Name Block
         builder.start("name")
@@ -417,15 +419,18 @@ class XmlMaterialProfile(InstanceContainer):
         try:
             data = ET.fromstring(serialized)
         except:
-            Logger.logException("e", "An exception occured while parsing the material profile")
+            Logger.logException("e", "An exception occurred while parsing the material profile")
             return
 
         # Reset previous metadata
+        old_id = self.getId()
         self.clearData() # Ensure any previous data is gone.
         meta_data = {}
         meta_data["type"] = "material"
         meta_data["base_file"] = self.getId()
         meta_data["status"] = "unknown"  # TODO: Add material verification
+        meta_data["id"] = old_id
+        meta_data["container_type"] = XmlMaterialProfile
 
         common_setting_values = {}