Verification admin email again after just changed/updated email?

[gqevu6bsiz]

Show the admin email varification after logged in, user is want to change the admin email.

1. Logged in.
2. Show the verification admin email.
3. Click the "Update".
4. Change the admin email on admin options setting screen.
5. Get the confimation email.
6. Update the admin email.
7. Logged out.
8. Logged in.
9. Verification admin email again.

I think add the admin email check internal when just update admin email.

[SergeyBiryukov]

Related: #48331