The CSV table cannot be repaired because my_error is set incorrectly

Tables using the CSV engine, such as general log and slow log, cannot be automatically repaired because my_error
is set to an incorrect value, making it impossible to operate on the CSV engine table.

You can reproduce the problem by following the steps below:
You need to set it in the configuration file my.cnf:

slow_query_log=on;

long_query_time=1;

log_output=table;

Start mariadb and execute:

select sleep(2);

Then kill the mariadb process. You will get a slow_log.CSM with crash bit set to true.

Then start mariadb.

show variables like "%slow%";

set global slow_query_log=off;

set global slow_query_log=on;

You will get the error：

ERROR 1032 (HY000): Can't find record in 'slow_log'

show variables like "%slow%"; will set thd->mysys_var->thr_errno = HA_ERR_END_OF_FILE;
when set global slow_query_log=on;
cause thd->mysys_var->thr_errno = HA_ERR_END_OF_FILE, the slow log file will not be repaired，so other operations related to the slow log file will not be possible.

I have some suggestions for fixing this bug, which you can see in the attachment.