config_sync_password infinitely doubles after maxscale restart & alter command

-rw-------. 1 maxscale maxscale 1040 Feb 21 16:39 /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf

-rw-------. 1 maxscale maxscale 2064 Feb 21 16:39 /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf

-rw-------. 1 maxscale maxscale 4112 Feb 21 16:39 /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf

.....

....

-rw-r--r--. 1 maxscale maxscale 65552 Feb 21 19:37 /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf

# Setup

maxkeys

maxpasswd aBcd123%

maxctrl alter service mcs_service password 2ED5CFAA0BED446436BAF8ED25DB9831AF576A13002FF80FE6C93F4F77F8E4CB

 ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf; maxctrl list servers; ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf;

# now grow

systemctl restart maxscale

maxctrl alter maxscale log_debug false

maxctrl alter maxscale log_debug true

 ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf; maxctrl list servers; ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf;

# grow again

systemctl restart maxscale

maxctrl alter maxscale log_debug false

maxctrl alter maxscale log_debug true

 ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf; maxctrl list servers; ls -la /var/lib/maxscale/maxscale.cnf.d/maxscale.cnf;