Close Document behaves different since Photoshop v.22.4.3, dependend of floating document window or tabbed documents

[Karmalakas]

@Lars

My plugin is listening to the Photoshop ‘close’ action. The action is triggered twice once with the data element ‘_isCommand’ TRUE and then again with FALSE.
Because I want the action to be handled only once I listen to ‘_isCommand’ FALSE and ignore the other one. That worked fine.

I had same issue with 22.1 I think, but after I simply restarted Ps, I noticed it was triggering only one event instead of two. It wasn’t close event I was listening to, but still. I’m not sure what’s happening with double events, but here’s my related question just in case:

What is `isCommand` in an event descriptor?

I have event listener in a plugin and usually it is called one time on each action. While developing at some point listener started recieving 2 events for each action. The only difference was isCommand property of the event descriptor - first time false and second time true. After I restarted Ps and loaded plugin again, it got back to one event per action with isCommand: false What is this property? Do we need to pass it using batchPlay()? Why it event were triggered twice?