Fast Scan equality for same identity

Author: ricardoV94

pytensor/scan/op.py

@@ -1248,6 +1248,9 @@ def is_cpu_vector(s):
         return apply_node
 
     def __eq__(self, other):
+        if self is other:
+            return True
+
         if type(self) is not type(other):
             return False