Session::keep() sometimes causing error: array_merge(): Argument #1 is not an array

[matthewgoslett]

I'm not 100% sure this is the cause for this but I'm able to replicate by doing the following:

1. User was logged in previous day.
2. The user loads a page the following day but is not logged in yet, although I suspect the remember me cookie triggers a login at this point.
3. I call a Session::keep(array('_old_input', 'errors')); on this first request.
4. Session:keep() calls $this->mergeNewFlashes($keys);
5. In mergeNewFlashes(), the line $values = array_unique(array_merge($this->get('flash.new'), $keys)); causes an error:

array_merge(): Argument #1 is not an array

If I var_dump the output of $this->get('flash.new'), the value is NULL

If this is indeed the issue, would changing $this->get('flash.new') to $this->get('flash.new', array()) not fix the this?

[taylorotwell]

Fixed. Thanks.