Cursor-Plugin check for isChangeOrigin is always undefined

[James Fox]

Describe the bug
The cursor-plugin checks for isChangeOrigin by looking at the sync plugin's state (ySyncPluginKey.getState(newState))

I believe this should actually be looking at the ysync transaction meta for this field (tr.getMeta(ySyncPluginKey))

In my testing, the former is always undefined, where the latter is true for cases where the doc is changed by another browser instance.

Creating new decorations still works but I assume it is less performant.

To Reproduce
Steps to reproduce the behavior:

1. Add a console.log to yCursorPlugin > state > apply with the value of ySyncPluginKey.getState(newState)
2. Open a document in 2 different browser windows and type in one of them
3. Observe that the value is always undefined

Expected behavior
The isChangeOrigin check properly reflects if the doc was changed by another user.

Additional context
Discovered this while trying to mimic the cursor plugin behavior in our own plugin.

[James Fox]

Closing this as the issue was the order of plugins.

My feature plugin was running before the ySync plugin, preventing it from reading the updated state of that plugin before it ran.