Fix detecting changes on numpy arrays

tangostationcontrol/tangostationcontrol/common/events/change_events.py

@@ -3,6 +3,8 @@
 
 from typing import Dict
 
+import numpy
+
 from tango.server import Device
 
 
@@ -34,7 +36,7 @@ class ChangeEvents:
     def send_change_event(self, attr_name: str, value: object | None):
         """Emits a CHANGE_EVENT if the attribute has changed value."""
 
-        if self.prev_values.get(attr_name) == value:
+        if numpy.equal(self.prev_values.get(attr_name), value).all():
             # no change
             return