regression in 3.x.y: parameterized batch in multiquery mode "SET @name := ?; INSERT INTO products( name ) VALUES ( @name )" fails

 running:

  SELECT version() as serverVersion

 Server version: [{serverVersion=10.5.4-MariaDB}]

 Driver version: 3.1.2

 running:

  DROP TABLE IF EXISTS products

 running:

  CREATE TABLE IF NOT EXISTS products (

    id       int unsigned AUTO_INCREMENT NOT NULL,

    name     varchar( 100 ) NOT NULL,

    created  datetime DEFAULT CURRENT_TIMESTAMP NOT NULL,

    PRIMARY KEY ( id )

  ) DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_unicode_ci

 running batch:

  SET @name := ?;

  INSERT INTO products( name ) VALUES ( @name )

[ WARN] (main) Error: 1064-42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO products( name ) VALUES ( @name )' at line 2

[ WARN] (main) Error: 1243-HY000: Unknown prepared statement handler (4294967295) given to mysqld_stmt_execute

Exception in thread "main" java.sql.BatchUpdateException: (conn=1356) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO products( name ) VALUES ( @name )' at line 2

	at org.mariadb.jdbc.export.ExceptionFactory.createBatchUpdate(ExceptionFactory.java:181)

	at org.mariadb.jdbc.ClientPreparedStatement.executeBatchBulk(ClientPreparedStatement.java:179)

	at org.mariadb.jdbc.ClientPreparedStatement.executeInternalPreparedBatch(ClientPreparedStatement.java:115)

	at org.mariadb.jdbc.ClientPreparedStatement.executeBatch(ClientPreparedStatement.java:466)

	at test.MariaDB_Regression3.runBatch(MariaDB_Regression3.java:88)

	at test.MariaDB_Regression3.main(MariaDB_Regression3.java:108)

Caused by: java.sql.BatchUpdateException: (conn=1356) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO products( name ) VALUES ( @name )' at line 2

	at org.mariadb.jdbc.export.ExceptionFactory.createBatchUpdate(ExceptionFactory.java:215)

	at org.mariadb.jdbc.client.impl.StandardClient.executePipeline(StandardClient.java:620)

	at org.mariadb.jdbc.ClientPreparedStatement.executeBatchBulk(ClientPreparedStatement.java:148)

	... 4 more

Caused by: java.sql.SQLSyntaxErrorException: (conn=1356) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INSERT INTO products( name ) VALUES ( @name )' at line 2

	at org.mariadb.jdbc.export.ExceptionFactory.createException(ExceptionFactory.java:282)

	at org.mariadb.jdbc.export.ExceptionFactory.create(ExceptionFactory.java:370)

	at org.mariadb.jdbc.message.client.PreparePacket.readPacket(PreparePacket.java:74)

	at org.mariadb.jdbc.client.impl.StandardClient.readPacket(StandardClient.java:855)

	at org.mariadb.jdbc.client.impl.StandardClient.readResults(StandardClient.java:794)

	at org.mariadb.jdbc.client.impl.StandardClient.readResponse(StandardClient.java:713)

	at org.mariadb.jdbc.client.impl.StandardClient.executePipeline(StandardClient.java:571)

	... 5 more