Folks who wants to keep the same password for this defect, can try the below workaround:
Workaround:
1.Change OS admin password to something new
"set password user admin"
2. Disable the password history
"set password history 0"
3.Update the OS admin password to your Previous one
4.Enable the password history
"set password history 10"
Regards,
Lobsang Phuntsok