Error when saving a note

[ravl1084]

When saving a new note (a note just created with \n) with :wq, I get the following error:

Error detected while processing BufUnload Auto commands for "<buffer=12>":
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/rav/.vim/bundle/vim-pad/pythonx/pad/pad.py", line 41, in update
    V + "bwipeout"
  File "/home/rav/.vim/bundle/vim-pad/pythonx/pad/vim_interface.py", line 24, in _
_add__
    vim.command(cmd)
vim.error: Vim(bwipeout):E937: Attempt to delete a buffer that is in use

The note is saved, though.

If I open an existing note and then save it with :wq, there are no problems