Fix geo constant scope

lib/Media.php

@@ -83,7 +83,7 @@ class Media extends PhpObject {
 				}
 			}
 		}
-		return $bOwnMedia?$this->asMedia:$asMedias;
+		return $bOwnMedia?$this->asMedia:$asMedias ?? [];
 	}
 
 	public function getInfo() {
@@ -273,6 +273,8 @@ class Media extends PhpObject {
 					//Resize
 					$asThumbInfo = ToolBox::createThumbnail($sTempPath, self::THUMB_MAX_WIDTH, 0, $sThumbPath, true);
 					break;
+				default:
+					$asThumbInfo = ['error'=>'error.unknown_type', 'out'=>''];
 			}
 
 		}