The FilterWritePost event:
Fires:
radio_button_unchecked
After writing a file for a filter command or making a diff with an external diff
Notes:
radio_button_unchecked
Neovim checks the pattern against the name of the current buffer as with FilterWritePre.
radio_button_unchecked
This event does not fire when 'shelltemp' is off.
See Also:
radio_button_uncheckedDiffUpdated