geometry: Fix profile add, undo.

src/Model/Geometry/Reach.py

@@ -79,13 +79,15 @@ class Reach:
             index: The position of the new profile.
 
         Returns:
-            Nothing.
+            The new profile.
         """
         profile = ProfileXYZ(reach=self)
 
         self._profiles.insert(index, profile)
         self._update_profile_numbers()
 
+        return profile
+
     def insert_profile(self, index: int, profile: Profile):
         """Insert new profile in list
 

src/View/Geometry/ReachUndoCommand.py

@@ -40,12 +40,16 @@ class AddCommand(QUndoCommand):
 
         self._reach = reach
         self._index = index
+        self._profile = None
 
     def undo(self):
-        self._reach.delete(self._index)
+        self._reach.delete_profiles([self._profile])
 
     def redo(self):
-        self._reach.insert(self._index)
+        if self._profile is None:
+            self._profile = self._reach.insert(self._index)
+        else:
+            self._reach.insert_profile(self._index, self._profile)
 
 class DelCommand(QUndoCommand):
     def __init__(self, reach, rows):