Removed cast only in sparse categorical cross entropy loss

keras/losses.py

@@ -1536,7 +1536,7 @@ def categorical_hinge(y_true, y_pred):
     Categorical hinge loss values.
   """
   y_pred = tf.convert_to_tensor(y_pred)
-
+  y_true = tf.cast(y_true, y_pred.dtype)
   pos = tf.reduce_sum(y_true * y_pred, axis=-1)
   neg = tf.reduce_max((1. - y_true) * y_pred, axis=-1)
   zero = tf.cast(0., y_pred.dtype)