[#1609] morph/client: Retry connecting to failed endpoint during the switch

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

CHANGELOG.md

@@ -13,6 +13,7 @@ Changelog for NeoFS Node
 - Require SG members to be unique (#1490)
 - `neofs-cli` now doesn't remove container with LOCK objects without `--force` flag (#1500)
 - `morph` sections in IR and storage node configuration now accept an address and a priority of an endpoint (#1609)
+- Morph client now retries connecting to the failed endpoint too (#1609)
 
 ### Fixed
 

pkg/morph/client/multi.go

@@ -34,12 +34,7 @@ func (c *Client) switchRPC() bool {
 
 	// Iterate endpoints in the order of decreasing priority.
 	// Skip the current endpoint.
-	last := c.endpoints.curr
 	for c.endpoints.curr = range c.endpoints.list {
-		if c.endpoints.curr == last {
-			continue
-		}
-
 		newEndpoint := c.endpoints.list[c.endpoints.curr].Address
 		cli, err := newWSClient(c.cfg, newEndpoint)
 		if err != nil {