BIM: fix setting of self.Type

Fixes #21364.

`self.Type` should be set in `__init__` and `loads`, and not in `onDocumentRestored`.

Additionally:
fixed mistake in `loads` in ifc_objects.py.

src/Mod/BIM/ArchPipe.py

@@ -61,6 +61,7 @@ class _ArchPipe(ArchComponent.Component):
     def __init__(self,obj):
 
         ArchComponent.Component.__init__(self,obj)
+        self.Type = "Pipe"
         self.setProperties(obj)
         # IfcPipeSegment is new in IFC4
         from ArchIFC import IfcTypes
@@ -94,13 +95,16 @@ class _ArchPipe(ArchComponent.Component):
         if not "ProfileType" in pl:
             obj.addProperty("App::PropertyEnumeration", "ProfileType", "Pipe", QT_TRANSLATE_NOOP("App::Property","If not based on a profile, this controls the profile of this pipe"), locked=True)
             obj.ProfileType = ["Circle", "Square", "Rectangle"]
-        self.Type = "Pipe"
 
     def onDocumentRestored(self,obj):
 
         ArchComponent.Component.onDocumentRestored(self,obj)
         self.setProperties(obj)
 
+    def loads(self,state):
+
+        self.Type = "Pipe"
+
     def onChanged(self, obj, prop):
         if prop == "IfcType":
             root = ArchIFC.IfcProduct()