Darktable 3.0 - Retouch module issue

Hi everyone, I found that in darktable 3.0, the Retouch module doesn’t work well. To make it work I have to open and then close a new instance of the module itself.
I use macOS Sierra but I have verified that it also happens in Windows 10.
See video.

In the first step you’re copying from an area where the bird is present; when you drag the source area to the side the bird is no longer copied. Works as designed.
There‘re two way cope with this topic:

  1. shift click at the place the source area should be first
  2. click onto the retouch type icon (area in your case) to inactivate it, then the area is shown.

Have a look into the manual - the behaviour is well documented. It’s worth it …

Thanks for your reply, the operation is a bit different from what I expected, that is, as the Spot removal module. Now I understand, thanks.