Filter of file source doesn't work properly, but file/rec works

[skt041959]

Warning: I will close the issue without the minimal init.vim and the reproduction instructions.

Problems summary

The filter of file source can't return substring matches. But file/rec work correctly.

Expected

The filter should return substring matches at least.

Environment Information (Required!)

• denite version (SHA1): 9848fc7

• OS: Archlinux

• Vim/neovim version: NVIM v0.5.0-dev+1051-g4d1fc167a

• :checkhealth or :CheckHealth result(neovim only):

  • OK: has("python3") was successful
  • OK: Python 3.6.1+ was successful
  • OK: Require msgpack 1.0.0+ was successful

Provide a minimal init.vim with less than 50 lines (Required!)

set runtimepath+=~/path/to/denite.nvim/

How to reproduce problems from neovim startup (Required!)

1. cd ~/path/to/denite.nvim/test
2. nvim -u init_mini.vim
3. :Denite -input=auto file #show noting in denite window
4. :Denite -input=auto file/rec #show autoload* items in denite window

Generate a logfile if appropriate

Nothing in log file

Screenshot (if possible)

Upload the log file

[Shougo]

Fixed.