morph: fix error from CalculateNonceAndVUB

The alphabetic key change event comes from the main chain with its hash, and
when calculating vub, an error is returned because there is no hash in the FS
chain. Ignore the error and calculate the value in another way.

Signed-off-by: Andrey Butusov <[email protected]>

Author: End-rey

CHANGELOG.md

@@ -24,6 +24,7 @@ Changelog for NeoFS Node
 - `neofs_node_engine_list_containers_time_bucket` and `neofs_node_engine_exists_time_bucket` metrics (#3014)
 - `neofs_node_engine_list_objects_time_bucket` metric (#3120)
 - The correct role parameter to invocation (#3127)
+- Calculation of VUB when it is impossible to get the transaction height (#3134)
 
 ### Changed
 - Number of cuncurrenly handled notifications from the chain was increased from 10 to 300 for IR (#3068)

pkg/morph/client/notary.go

@@ -769,7 +769,12 @@ func (c *Client) CalculateNonceAndVUB(hash util.Uint256) (nonce uint32, vub uint
 
 	height, err := c.getTransactionHeight(conn, hash)
 	if err != nil {
-		return 0, 0, fmt.Errorf("could not get transaction height: %w", err)
+		c.logger.Warn("could not get transaction height", zap.Error(err))
+		vub, err = c.notaryTxValidationLimit(conn)
+		if err != nil {
+			return 0, 0, fmt.Errorf("could not get vub validation limit: %w", err)
+		}
+		return nonce, vub, nil
 	}
 
 	return nonce, height + c.notary.txValidTime, nil