Fix #8095

Clear the list of miner addresses and successfull get-asked before asking for new ones
Previous behavior : if get-ask failed for miner(s), the faulty miner will be retried each time,
so you have to stop the command and start again to change this faulty miner (instead of removing from the list on the new attempt)

cli/client.go

@@ -667,6 +667,8 @@ uiLoop:
 
 			state = "miner"
 		case "miner":
+			maddrs = maddrs[:0]
+			ask = ask[:0]
 			afmt.Print("Miner Addresses (f0.. f0..), none to find: ")
 
 			_maddrsStr, _, err := rl.ReadLine()
@@ -802,7 +804,8 @@ uiLoop:
 
 			dealCount, err = strconv.ParseInt(string(dealcStr), 10, 64)
 			if err != nil {
-				return err
+				printErr(xerrors.Errorf("reading deal count: invalid number"))
+				continue
 			}
 
 			color.Blue(".. Picking miners")
@@ -859,12 +862,13 @@ uiLoop:
 
 				a, err := api.ClientQueryAsk(ctx, *mi.PeerId, maddr)
 				if err != nil {
-					printErr(xerrors.Errorf("failed to query ask: %w", err))
+					printErr(xerrors.Errorf("failed to query ask for miner %s: %w", maddr.String(), err))
 					state = "miner"
 					continue uiLoop
 				}
 
 				ask = append(ask, *a)
+
 			}
 
 			// TODO: run more validation