Retry lock acquire even when all nodes are taken

Author: hjr265

mutex.go

@@ -84,9 +84,6 @@ func (m *Mutex) LockContext(ctx context.Context) error {
 				return m.acquire(ctx, pool, value)
 			})
 		}()
-		if n == 0 && err != nil {
-			return err
-		}
 
 		now := time.Now()
 		until := now.Add(m.expiry - now.Sub(start) - time.Duration(int64(float64(m.expiry)*m.driftFactor)))