feat: add isChangeOrigin helper method

packages/extension-collaboration/src/helpers/isChangeOrigin.ts

@@ -0,0 +1,6 @@
+import { ySyncPluginKey } from 'y-prosemirror'
+import { Transaction } from 'prosemirror-state'
+
+export function isChangeOrigin(transaction: Transaction): boolean {
+  return !!transaction.getMeta(ySyncPluginKey)
+}

packages/extension-collaboration/src/index.ts

@@ -1,5 +1,6 @@
 import { Collaboration } from './collaboration'
 
 export * from './collaboration'
+export * from './helpers/isChangeOrigin'
 
 export default Collaboration