Unexpected error thrown after connection to remote server broken

Issue:

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After connection to remote server is broken due to timeout ,
Subsequent query fails to open new connection ,uses broken connection and errors out

MariaDB [m8]> truncate s1;
ERROR 1296 (HY000): Got error 10000 'Error on remote system: 2006: Server has gone away' from FEDERATED

Testcase:

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MariaDB [m8]> UPDATE s1 a JOIN s1 b SET a.a = 1;truncate s1;truncate s1;
ERROR 1159 (08S01): Got timeout reading communication packets
ERROR 1296 (HY000): Got error 10000 'Error on remote system: 2006: Server has gone away' from FEDERATED
ERROR 1159 (08S01): Got timeout reading communication packets

Issue details:

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Update Query takes 10sec to execute
Say federated server started with net_read_timeout=3
So update query errors in 3sec bcz of timeout
Connection to remote server is broken.
1st Truncate -->Instead of opening new connection to remote server, Tries to re-use broken connection ,hence error's out with "Server has gone away" -->Bug ??
2nd Truncate --Opens new connection as expected.

Version used:

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Debug build
Branch : 13.2-MDEV-41243-fedx-pushdown-assert-for-upd-del-prepared-stmts
commit: e7d83013b31c4cc97a0003a0e58b707d94cba042
Version : 13.1.0

How to repeat:

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Slave:

create table s1( a int);

Master: Start server with federated engine enabled

Start server with --net_read_timeout=3

create table s1(a int)  ENGINE="FEDERATED" CONNECTION='mysql://u3:pass1@127.0.0.1:3306/m8/s1';

insert into s1 select seq from seq_1_to_1000; 

set global federated_pushdown=ON;

UPDATE s1 a JOIN s1 b SET a.a = 1;truncate s1; //Notice "server has gone away" error