clear error when re-fetching clase

src/reducers/ClasesReducer.js

@@ -13,7 +13,7 @@ const INITIAL_STATE = {
 export default (state = INITIAL_STATE, action) => {
 	switch (action.type) {
 		case CLASE_FETCH:
-		return { ...state, loading: true };
+		return { ...state, curClase: { error: false }, loading: true };
 		case CLASE_FETCH_SUCCESS:
 		return { ...state, loading: false, curClase: action.payload };
 		case CLASE_FETCH_FAIL: