Fatal Error when Bulk Changing User Roles to "No Role for This Site"

[soyebsalar]

When bulk changing all users, including the admin, to "No Role for This Site," a fatal error occurs due to a call to has_cap() on a null object.

Steps to Reproduce:

Go to Dashboard → Users.

Bulk select all users, including the admin.

Select "No Role for This Site" from the Change role to… dropdown.

Click Change.

Observe the fatal error:Fatal error: Call to a member function has_cap() on null in ​https://www.yoursite.com/wp-admin/users.php on line 148

[jorbin]

This issue is already being tracked in #63068.