Typescript import = Namespace isn't transpiled correctly

[mischnic]

Describe the bug

https://www.typescriptlang.org/docs/handbook/namespaces.html#aliases

Input code

namespace Shapes {
  export namespace Polygons {
    export class Triangle {}
    export class Square {}
  }
}
import polygons = Shapes.Polygons;
let sq = new polygons.Square();

Config

{
	"env": {},
	"jsc": {
		"parser": {
			"syntax": "typescript"
		}
	}
}

Current behavior

var Shapes;
(function(Shapes) {
    var Polygons;
    (function(Polygons) {
        class Triangle {
        }
        Polygons.Triangle = Triangle;
        class Square {
        }
        Polygons.Square = Square;
    })(Polygons || (Polygons = {
    }));
    Shapes.Polygons = Polygons;
})(Shapes || (Shapes = {
}));
let sq = new polygons.Square();
export { };

(polygons is undefined)

Version
The version of @swc/core: 1.2.85

Additional context
parcel-bundler/parcel#6902

[swc-bot]

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