Use updatedModule.code for getting the latest version

Author: CompuIves

packages/@types/ot/index.d.ts

@@ -2,6 +2,8 @@ declare module 'ot' {
   export type SerializedTextOperation = (string | number)[];
 
   class TextOperation {
+    ops: SerializedTextOperation;
+
     delete(length: number): TextOperation;
     insert(str: string): TextOperation;
     retain(length: number): TextOperation;

packages/app/src/app/overmind/effects/live/index.ts

@@ -393,6 +393,14 @@ class Live {
       return;
     }
 
+    if (operation.ops.length === 1) {
+      const [op] = operation.ops;
+      if (typeof op === 'number') {
+        // Useless to send a single retain operation, ignore
+        return;
+      }
+    }
+
     if (moduleShortid.startsWith(OPTIMISTIC_ID_PREFIX)) {
       // Module is an optimistic module, we will send a full code update
       // once the module has been created, until then, send nothing!

packages/app/src/app/overmind/namespaces/files/actions.ts

@@ -691,7 +691,6 @@ export const moduleCreated: AsyncAction<{
     actions.editor.internal.setCurrentModule(module);
 
     try {
-      const savedCode = module.code;
       const updatedModule = await effects.api.createModule(sandbox.id, module);
 
       module.id = updatedModule.id;
@@ -710,7 +709,7 @@ export const moduleCreated: AsyncAction<{
         // Update server with latest data
         effects.live.sendCodeUpdate(
           module.shortid,
-          getTextOperation(savedCode || '', module.code)
+          getTextOperation(updatedModule.code || '', module.code)
         );
       }
     } catch (error) {