DevServer does not restore Accounts hooks and settings

I have currently an issue with the dev-server. While using it, it looks like the Accounts hooks and options are getting cleaned but not restored correctly.'

E.g. when setting a breakpoint in Meteor.startup Accounts._options has values. However afterwards they get cleaned and results in `Accounts._options = {}` the validateNewUser hook is also removed.

Maybe related to Issue #15?

**packages:**
```
# Meteor packages used by this project, one per line.
# Check this file (and the other files in this directory) into your repository.
#
# 'meteor add' and 'meteor remove' will edit this file for you,
# but you can also edit it by hand.

meteor-base@1.4.0 # Packages every Meteor app needs to have
mobile-experience@1.0.5 # Packages for a great mobile UX
mongo@1.6.2 # The database Meteor supports right now
reactive-var@1.0.11 # Reactive variable for tracker

standard-minifier-css@1.5.3 # CSS minifier run for production mode
standard-minifier-js@2.4.1 # JS minifier run for production mode
shell-server@0.4.0 # Server-side component of the `meteor shell` command

react-meteor-data # React higher-order component for reactively tracking Meteor data
tracker
universe:i18n
mdg:validated-method
accounts-password
email
meteortesting:mocha
kit:basic-auth
fourseven:scss
http
ardatan:webpack
ardatan:webpack-dev-middleware
```

**package.json:**
```
{
"name": "xys",
"private": true,
"scripts": {
"start": "meteor run",
"test": "rm -fr .meteortest",
"test-app": "TEST_WATCH=1 meteor test --full-app --test-app-path $(pwd)/.meteortest --once --driver-package meteortesting:mocha",
"visualize": "meteor --production --extra-packages bundle-visualizer",
"lint": "eslint . --fix",
"pretest": "npm run lint --silent",
"build": "webpack"
},
"pre-commit": "lint",
"dependencies": {
"@babel/polyfill": "^7.4.4",
"@babel/runtime": "^7.4.5",
"@fortawesome/fontawesome-svg-core": "^1.2.18",
"@fortawesome/free-brands-svg-icons": "^5.8.2",
"@fortawesome/free-regular-svg-icons": "^5.8.2",
"@fortawesome/free-solid-svg-icons": "^5.8.2",
"@fortawesome/react-fontawesome": "^0.1.4",
"animate.css": "^3.7.0",
"bcrypt": "^3.0.6",
"bootstrap": "^4.3.1",
"formik": "^1.5.7",
"history": "^4.7.2",
"jquery": "^3.4.1",
"js-md5": "^0.7.3",
"meteor-node-stubs": "^0.4.1",
"popper.js": "^1.14.6",
"prop-types": "^15.6.2",
"query-string": "^5.1.1",
"react": "^16.7.0",
"react-bootstrap": "^1.0.0-beta.8",
"react-cookie-consent": "^2.3.1",
"react-dom": "^16.7.0",
"react-ga": "^2.5.7",
"react-router": "^5.0.0",
"react-router-dom": "^5.0.0",
"react-toastify": "^5.1.1",
"simpl-schema": "^1.5.5",
"yup": "^0.27.0"
},
"devDependencies": {
"@babel/core": "^7.4.5",
"@babel/plugin-proposal-class-properties": "^7.4.4",
"@babel/plugin-syntax-jsx": "^7.2.0",
"@babel/plugin-transform-react-display-name": "^7.2.0",
"@babel/plugin-transform-react-jsx": "^7.3.0",
"@babel/plugin-transform-react-jsx-self": "^7.2.0",
"@babel/plugin-transform-react-jsx-source": "^7.2.0",
"@babel/preset-env": "^7.4.5",
"@babel/preset-react": "^7.0.0",
"@meteorjs/eslint-config-meteor": "^1.0.5",
"autoprefixer": "^9.5.1",
"babel-eslint": "^10.0.1",
"babel-loader": "^8.0.6",
"css-loader": "^2.1.1",
"eslint": "^5.16.0",
"eslint-config-airbnb": "^17.1.0",
"eslint-import-resolver-meteor": "^0.4.0",
"eslint-loader": "^2.1.2",
"eslint-plugin-import": "^2.17.3",
"eslint-plugin-jsx-a11y": "^6.2.0",
"eslint-plugin-meteor": "^5.1.0",
"eslint-plugin-react": "^7.13.0",
"file-loader": "^3.0.1",
"html-loader": "^0.5.5",
"html-webpack-plugin": "^3.2.0",
"node-sass": "^4.12.0",
"postcss-loader": "^3.0.0",
"precss": "^4.0.0",
"react-hot-loader": "^4.8.8",
"sass-loader": "^7.1.0",
"style-loader": "^0.23.1",
"webpack": "^4.32.2",
"webpack-cli": "^3.3.2",
"webpack-dev-middleware": "^3.7.0",
"webpack-hot-middleware": "^2.25.0",
"webpack-hot-server-middleware": "^0.6.0",
"webpack-meteor-externals": "0.0.5",
"webpack-node-externals": "^1.7.2"
},
"eslintConfig": {
"extends": "@meteorjs/eslint-config-meteor"
}
}
```

**webpack.config.js:**
```const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const meteorExternals = require('webpack-meteor-externals');
const nodeExternals = require('webpack-node-externals');
const precss = require('precss');
const autoprefixer = require('autoprefixer');

const clientConfig = {
mode: 'development',
devtool: 'eval-source-map',
devServer: {
hot: true,
},
entry: ['@babel/polyfill', './client/main.js'],
output: {
publicPath: '/',
filename: 'bundle.js',
},
module: {
rules: [
{
enforce: 'pre',
test: /\.js$/,
exclude: /node_modules/,
use: ['eslint-loader'],
},
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
use: [
{
loader: 'babel-loader',
options: {
presets: ['@babel/preset-env', '@babel/preset-react'],
plugins: ['@babel/plugin-proposal-class-properties'],
},
},
],
},
{
test: /\.(scss|css)$/,
use: [
{
loader: 'style-loader',
},
{
loader: 'css-loader',
},
{
loader: 'postcss-loader',
options: {
plugins() {
return [
precss,
autoprefixer,
];
},
},
},
{
loader: 'sass-loader',
},
],
},
{
test: /\.(jpe?g|png|gif|svg)$/,
use: [
{
loader: 'file-loader',
options: {},
},
],
},
],
},
plugins: [
new HtmlWebpackPlugin({
template: './client/main.html',
favicon: './client/favicon.png',
}),
new webpack.HotModuleReplacementPlugin(),
],
resolve: {
extensions: [
'*', '.js', '.jsx',
],
},
externals: [
meteorExternals(),
],
};

const serverConfig = {
mode: 'development',
devtool: 'eval-source-map',
devServer: {
hot: true,
},
entry: [
'./server/main.js',
],
target: 'node',
externals: [
nodeExternals(),
meteorExternals(),
],
};

module.exports = [clientConfig, serverConfig];
```

Start with webpack.config.js and reproduce the issue while running the configured client and server entries, ./client/main.js and ./server/main.js. Inspect when Accounts._options and validateNewUser are cleared during dev-server activity. Done means the hooks and settings remain available after that cycle, with the reported behavior no longer reproducible.

Written by the indexing model from the issue text.