fix: update gate.clifford value in rotations given a new theta

src/qibo/gates/gates.py

@@ -524,13 +524,28 @@ def __init__(self, q, theta, trainable=True):
         if isinstance(theta, Parameter):
             theta = theta()
 
-        if isinstance(theta, (float, int)) and (theta % (np.pi / 2)).is_integer():
-            self.clifford = True
+        self.update_clifford_condition(theta)
 
-        self.parameters = theta
+        self._parameters = theta
         self.init_args = [q]
         self.init_kwargs = {"theta": theta, "trainable": trainable}
 
+    def update_clifford_condition(self, theta):
+        """Update Clifford boolean condition according to the given angle ``theta``."""
+        if isinstance(theta, (float, int)) and (theta % (np.pi / 2)).is_integer():
+            self.clifford = True
+        else:
+            self.clifford = False
+
+    @property
+    def parameters(self):
+        return self._parameters
+
+    @parameters.setter
+    def parameters(self, value):
+        self._parameters = value
+        self.update_clifford_condition(value)
+
     def _dagger(self) -> "Gate":
         """"""
         return self.__class__(