Cannot append file with drag and drop from Nautilus

I use Archlinux with Nautilus 3.38.1 and Evolution 3.38.1.

I already reported that since 3.36 it was not possible to append files to emails using the Ctrl+V from Nautilus (issue 948). With the update to 3.38, we can no longer drag and drop files into the email editor to append files; doing so the following text appears in the body part: file:///home/vincent/file.txt.

Now the only way to append a file is to use the Menu or Ctrl+M. It is very slow compared to the other formerly available methods.