Clone website and redireccto admin

Hi guys,

I cloned my website in a subdomain for to test new theme and functions:
– new db with changed alla urls to sub.domain.com in Sql file,
– new wp-config,
– new table options for homepage, siteurl and url for recently_edited in DB

but when I try to login in from wp-login page in the subdomain redirect me to first domain.

How can I do to enter a dashboard of subdomain please?

Have a good day
M