OWKmeans: Send data when X is same only when auto commit

Author: pavlin-policar

Orange/widgets/unsupervised/owkmeans.py

@@ -470,7 +470,8 @@ def set_data(self, data):
 
         # Do not needlessly recluster the data if X hasn't changed
         if old_data and self.data and np.array_equal(self.data.X, old_data.X):
-            self.send_data()
+            if self.auto_commit:
+                self.send_data()
         else:
             self.invalidate()