Description:
------------
Copied by a github laravel issue (https://github.com/laravel/framework/issues/29963)
Note: 
filled(null) return false
inside the foreach you can use any collections you want,it doesn't change anything
old('something') is like $_REQUEST('something')
{{ ... }} means <?php ... ?>
@foreach ... @endforeach means <?php foreach(){...} ?>
### Description:
I'm trying to set a select option on a specific element choosen by if is in old(), if not, if belongs to the element (in this case, wine) with ternary opertor, but this 
```php
@foreach (App\Models\Region::all() as $reg)
     <option value="{{$reg->region_id}}" {{filled(old('region_id'))&&old('region_id')==$reg->region_id ?'selected': filled($wine->region)? $reg->region_id==$wine->region->region_id? "selected": '' :''}}>{{$reg->region_id}} - {{$reg->region_name}}</option>
 @endforeach
```
that formatted i belive that has this meaning 
```php
filled(old('region_id'))&&old('region_id')==$reg->region_id
    ?
        'selected'
    : 
        filled($wine->region)
            ? 
                $reg->region_id==$wine->region->region_id
                    ? 
                        "selected"
                    : 
                '' 
            :
                ''
```
is evaluated differently respect of this
```php
@foreach (App\Models\Region::all() as $reg)
          <option value="{{$reg->region_id}}" {{filled(old('region_id'))&&old('region_id')==$reg->region_id ?'selected': (filled($wine->region)? ($reg->region_id==$wine->region->region_id? "selected": '' ):'')}}>{{$reg->region_id}} - {{$reg->region_name}}</option>
@endforeach
```
that formatted i belive that has this meaning 
```php
filled(old('region_id'))&&old('region_id')==$reg->region_id 
    ?
        'selected'
    : 
        (
            filled($wine->region)
                ? 
                    (
                        $reg->region_id==$wine->region->region_id
                            ? 
                                "selected"
                            : 
                                '' 
                    )
                :
                    ''
        )
```
the difference is that the first one, also if the second filled ( `filled($wine->region)` ) returns false, runs the `$reg->region_id==$wine->region->region_id` and the second one, the one with the brackets, no

Tell me if you need more code or more information, there is no problem
Thanks, Alberto

The point is that if $wine->region does not exist, when it trys to execute `$wine->region->region_id` it throw an exception because i'm reading a property of a null element, but if `$wine->region` was null, `filled($wine->region)` should has retuned false, and so that code should not have been executed

Actual result:
--------------
descrited at the end of the bug description