Always save attribution in caption

Hello,

I’ve noticed that when I insert picture into the post, it is saved with attribution in caption.

But when I use it as featured image, caption input is empty – that’s a shame, it would be very usefull to save attribution in image captions.

Is there any way in which I could make it work like this? I mean: to save image as featured image and save attribution information in wordpress caption at the same time?

https://www.ads-software.com/plugins/wp-inject/