fix(core) Nested chain not preserving dispatch state (#4152)

* Fix nested chain not preserving dispatch state

* Change test to read as sentence

packages/core/src/CommandManager.ts

@@ -133,7 +133,7 @@ export class CommandManager {
         transaction: tr,
       }),
       dispatch: shouldDispatch ? () => undefined : undefined,
-      chain: () => this.createChain(tr),
+      chain: () => this.createChain(tr, shouldDispatch),
       can: () => this.createCan(tr),
       get commands() {
         return Object.fromEntries(

tests/cypress/integration/core/can.spec.ts

@@ -167,4 +167,32 @@ describe('can', () => {
 
     expect(canSetMarkToBold).to.eq(true)
   })
+
+  it('builds and passes down an undefined dispatch for nested "can" chain', () => {
+    const editor = new Editor({
+      extensions: [Document, Paragraph, Text, History],
+    })
+
+    let capturedOuterDispatch: ((args?: any) => any) | undefined
+    let capturedInnerDispatch: ((args?: any) => any) | undefined
+
+    editor
+      .can()
+      .chain()
+      .command(({ chain, dispatch: outterDispatch }) => {
+        capturedOuterDispatch = outterDispatch
+        return chain()
+          .command(({ dispatch: innerDispatch }) => {
+            capturedInnerDispatch = innerDispatch
+            return true
+          })
+          .run()
+      })
+      .run()
+
+    // eslint-disable-next-line no-unused-expressions
+    expect(capturedOuterDispatch).to.be.undefined
+    // eslint-disable-next-line no-unused-expressions
+    expect(capturedInnerDispatch).to.be.undefined
+  })
 })