Gotcha - Using 'name' as a form name field stopped old() from working as expected.

edit - I'm an idiot. Something else was messing with the "name" values.

I ran in circles with this for a long time so thought I'd document it here in case it saves anyone else an hour of hair-pulling.

Controller has the line

    public function store(Request $request)
    {
        request()->session()->flash('info', "Name:" . request()->name . " Foo:" . request()->foo);
        return back()->withInput();
    }

Form is

<form class="form" action="/blocks" method="POST">

    @csrf

    <div class="form-group">
        <div class="col-md-6 col-md-offset-4">
            <button type="submit" class="btn btn-primary">
                Add Email Blocks
            </button>
        </div>
    </div>

    <div class="form-group">
        <label for="foo">foo</label>
        <input type="text" name="foo" id="foo" class="form-control" value="{{ old('foo') }}">
    </div>

    <div class="form-group">
        <label for="name">Name</label>
        <input type="text" name="name" id="name" class="form-control" value="{{ old('name') }}">
    </div>
</form>

Submitting the form the "name" field was never updated, but foo would be.

Thought i'd submit this here as Laracasts ranks highly for Laravel issues so this might help someone in the future.