Fix live resetting the sandbox on load

Author: CompuIves

packages/app/src/app/store/modules/editor/getters.js

@@ -30,6 +30,10 @@ export function currentModule() {
 export function modulesByPath() {
   const modulesObject = {};
 
+  if (!this.currentSandbox) {
+    return modulesObject;
+  }
+
   this.currentSandbox.modules.forEach(m => {
     const path = getModulePath(
       this.currentSandbox.modules,

packages/app/src/app/store/sequences.js

@@ -151,10 +151,19 @@ export const setSandbox = [
       setupExecutor,
       syncFilesToFS,
 
-      // Remove the old sandbox because it's stale with the changes the user did on it (for example,
-      // the user might have changed code of a file and then forked. We didn't revert the code back
-      // to its old state so if the user opens this sandbox again it shows wrong code)
-      unset(state`editor.sandboxes.${props`oldId`}`),
+      // Check because in live oldId === currentId
+      when(
+        props`oldId`,
+        state`editor.currentId`,
+        (oldId, currentId) => oldId === currentId
+      ),
+      {
+        true: [],
+        // Remove the old sandbox because it's stale with the changes the user did on it (for example,
+        // the user might have changed code of a file and then forked. We didn't revert the code back
+        // to its old state so if the user opens this sandbox again it shows wrong code)
+        false: [unset(state`editor.sandboxes.${props`oldId`}`)],
+      },
     ],
   },
 ];