Fix style HMR on vanilla templates

Fixes codesandbox#917

Author: CompuIves

packages/app/src/sandbox/eval/transpiled-module.js

@@ -900,15 +900,14 @@ export default class TranspiledModule {
   }
 
   postEvaluate(manager: Manager) {
-    if (!manager.webpackHMR) {
-      // For non cacheable transpilers we remove the cached evaluation
-      if (
-        manager.preset
-          .getLoaders(this.module, this.query)
-          .some(t => !t.transpiler.cacheable)
-      ) {
-        this.compilation = null;
-      }
+    // Question: do we need to disable this for HMR projects?
+    // For non cacheable transpilers we remove the cached evaluation
+    if (
+      manager.preset
+        .getLoaders(this.module, this.query)
+        .some(t => !t.transpiler.cacheable)
+    ) {
+      this.compilation = null;
     }
   }