SystemJS gives up if bundles option is used

app.js

// Neither then() or catch() are called back by SystemJS
System.import('asysshop')
.then(function (shop) {
	shop.start();
})
.catch(function (err) {
	console.log(err);
});

asysform.js

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
System.register("asysform/base", [], function(exports_13, context_13) {
    "use strict";
    var __moduleName = context_13 && context_13.id;
    var Random;
    return {
        setters:[],
        execute: function() {
            Random = (function () {
                function Random() {
                }
                Random.float = function (min, max) {
                    return Math.random() * (max - min) + min;
                };
                Random.integer = function (min, max) {
                    return Math.floor(Math.random() * (max - min + 1)) + min;
                };
                Random.alphanum = function (len) {
                    var s = '';
                    for (var i = 0; i < len; i++) {
                        s += Random.ALPHANUM.charAt(Random.integer(0, Random.ALPHANUM.length - 1));
                    }
                    return s;
                };
                Random.ALPHANUM = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
                return Random;
            }());
            exports_13("Random", Random);
        }
    };
});
System.register("asysform", ["asysform/base"], function(exports_25, context_25) {
    "use strict";
    var __moduleName = context_25 && context_25.id;
    var base;
    var Version, VERSION;
    return {
        setters:[
            function (base_8) {
                base = base_8;
            }],
        execute: function() {
            exports_25("base", base);
            Version = (function () {
                function Version(major, minor, build, revision) {
                    if (major === void 0) { major = 0; }
                    if (minor === void 0) { minor = 0; }
                    if (build === void 0) { build = 0; }
                    if (revision === void 0) { revision = 0; }
                    this._major = major;
                    this._minor = minor;
                    this._build = build;
                    this._revision = revision;
                }
                Object.defineProperty(Version.prototype, "major", {
                    get: function () {
                        return this._major;
                    },
                    enumerable: true,
                    configurable: true
                });
                Object.defineProperty(Version.prototype, "minor", {
                    get: function () {
                        return this._minor;
                    },
                    enumerable: true,
                    configurable: true
                });
                Object.defineProperty(Version.prototype, "build", {
                    get: function () {
                        return this._build;
                    },
                    enumerable: true,
                    configurable: true
                });
                Object.defineProperty(Version.prototype, "revision", {
                    get: function () {
                        return this._revision;
                    },
                    enumerable: true,
                    configurable: true
                });
                Object.defineProperty(Version.prototype, "versionFull", {
                    get: function () {
                        return [this.major, this.minor, this.build, this.revision].join('.');
                    },
                    enumerable: true,
                    configurable: true
                });
                Object.defineProperty(Version.prototype, "versionShort", {
                    get: function () {
                        return [this.major, this.minor].join('.');
                    },
                    enumerable: true,
                    configurable: true
                });
                Version.prototype.toString = function () {
                    return 'Version (' + this.versionFull + ')';
                };
                return Version;
            }());
            exports_25("Version", Version);
            exports_25("VERSION", VERSION = new Version(1, 0, 0, 0));
        }
    };
});

asysshop.js

var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
System.register("asysshop", ['asysform', "asysform/base"], function(exports_7, context_7) {
    "use strict";
    var __moduleName = context_7 && context_7.id;
    var af, base;
    function start() {
		console.log('It runs'); // This should be in the log
    }
    exports_7("start", start);
    return {
        setters:[
            function (af_3) {
                af = af_3;
            },
            function (base_3_1) {
                base = base_3_1;
            }],
        execute: function() {
        }
    };
});

config.js

System.config({
	baseURL: '.',
	paths: {
		'*': '*.js'
	},
	bundles: {
		'asysform': [
			'asysform/base'
		]
	},
	meta: {
		'asysform': {
			scriptLoad: true, // optional
			format: 'register' // not recognized as register format otherwise
		},
		'asysshop': {
			scriptLoad: true, // optional
			format: 'register' // not recognized as register format otherwise
		}
	}
});

index.html

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Testpage</title>
        <link rel="shortcut icon" href="favicon.ico">
        <script src="system.js"></script>
        <script src="config.js"></script>
        <script src="app.js"></script>
    </head>
    <body></body>
</html>

system.js

// Replace this with SystemJS v0.19.27