Cut & paste issue

[webwit]

Hi, nice plugin, thanks! I had one minor issue:

I right click on the subject to change it. There's a little popup where I can input the new subject. I have the new subject in my clipboard and paste it (Windows) with CTRL+V.

Then it doesn't paste it into the field, but closes the popup.

Note that if I don't use CTRL+V, but right click on the field and select Paste, there is no issue.