minor #20240 [Security] Fix role to detect logged-in user (devojifr)

This PR was merged into the 6.4 branch.

Discussion
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[Security] Fix role to detect logged-in user

An error has been introduced since 6.2  when checking to see if a user is logged-in

Commits
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a867829 [Security] Fix role to detect logged-in user

Author: javiereguiluz

security.rst

@@ -2771,7 +2771,7 @@ you have the following two options.
 
 Firstly, if you've given *every* user ``ROLE_USER``, you can check for that role.
 
-Secondly, you can use the special "attribute" ``IS_AUTHENTICATED_FULLY`` in place of a role::
+Secondly, you can use the special "attribute" ``IS_AUTHENTICATED`` in place of a role::
 
     // ...