Segmentation fault (core dumped) $MYSQL "${mysql_opt[@]}" --batch --skip-column-names -e "show databases"

[mmenozzi]

Hi guys,
first of all thank you to @BigAndini and all other contributors for this AutoMySQLBackup fork and further development!

On a server I recently set up I have the following error every time we run automysqlbackup:

/usr/local/bin/automysqlbackup: line 1080: 120421 Segmentation fault      (core dumped) $MYSQL "${mysql_opt[@]}" --batch --skip-column-names -e "show databases"

I'm sure that the error happens in the parse_databases function:

https://github.com/sixhop/AutoMySQLBackup/blob/master/automysqlbackup#L1189

With our configuration $MYSQL is mysql --login-path=client and ${mysql_opt[@]} is empty.
If I run the following command directly in the server bash shell I have no error:

mysql --login-path=client --batch --skip-column-names -e "show databases"

I have no idea how to debug it.
My server is an Ubuntu Server 20.04 with MySQL 8.0.25.

Do you have any clue?