Redis [BUG] 03-failover-loop.tcl failed with connection abort

Describe the bug

./runtest-cluster --single 03

failed with " Cluster is writable again: Expected error reading "socka00715510": software caused connection abort eq {OK} (context: type eval line 4 cmd {assert {$err eq {OK}}} proc ::test) "

./runtest-cluster --single 03

Expected behavior

expect "GOOD! No errors."

Additional information

bug reason: while kill a master node , conenctions should refresh;