Remove static cache from our_address in favour of Cache::class keyed off setup:system_id

tests/Feature/RoutingTest.php

@@ -4,6 +4,7 @@ namespace Tests\Feature;
 
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Foundation\Testing\DatabaseTransactions;
+use Illuminate\Support\Facades\Cache;
 use Tests\TestCase;
 
 use App\Models\{Address,Domain,Setup,System};
@@ -268,10 +269,12 @@ class RoutingTest extends TestCase
 
 	public function test_complex_rc_nc_hc_us()
 	{
+		Cache::forget('so');
 		$setup = Setup::findOrFail(config('app.id'));
 		$ao = Address::findFTN('100:10/0.0@a');
 		$setup->system_id = $ao->system_id;
 		$setup->save();
+		$this->assertEquals('100:10/0.0@a',our_address($ao)?->ftn);
 
 		$this->session_rc();
 		//$this->session_nc();
@@ -303,6 +306,7 @@ class RoutingTest extends TestCase
 
 		$ao = Address::findFTN('100:10/22.0@a');
 		$this->assertEquals('100:10/20.0@a',$ao->parent()->ftn);
+		Cache::forget('so');
 	}
 
 	// A points parent is the node, if we have traffic for a point and we have session details for the node