Fixes
https://github.com/payloadcms/payload/issues/13589#issuecomment-3234832478
### Problem
The baseFilter is being applied when a user has no tenant selected, is
assigned to tenants BUT also passes the `userHasAccessToAllTenants`
check.
### Fix
Do not apply the baseFilter when no tenant is selected and the user
passes the `userHasAccessToAllTenants` check.