fix-next: pass --env.hmr only if the --hmr flag is raised

Author: sis0k0

lib/before-prepareJS.js

@@ -2,7 +2,10 @@ const { runWebpackCompiler } = require("./compiler");
 
 module.exports = function ($logger, $liveSyncService, $options, hookArgs) {
     const env = hookArgs.config.env || {};
-    env.hmr = !!$options.hmr;
+    if ($options.hmr) {
+        env.hmr = true;
+    }
+
     const platform = hookArgs.config.platform;
     const appFilesUpdaterOptions = hookArgs.config.appFilesUpdaterOptions;
     const config = {

lib/before-watch.js

@@ -7,7 +7,10 @@ module.exports = function ($logger, $liveSyncService, $options, hookArgs) {
             const platforms = hookArgs.config.platforms;
             return Promise.all(platforms.map(platform => {
                 const env = hookArgs.config.env || {};
-                env.hmr = !!$options.hmr;
+                if ($options.hmr) {
+                    env.hmr = true;
+                }
+
                 const config = {
                     env,
                     platform,