ag-match-face can not propertize matched string

[nrsaty]

My environment:
Windows/10 + msys2
emacs 26.0.90
ag 2.1.0
ag-el 0.48

My ag seems not output ANSI color sequence when --vimgrep specified. So, ag-el can not colorize matched string in result buffer.

Example output in mintty.Command is as follows:
ag --vimgrep --literal --group --line-number --column -
-color --color-match '30;43' --color-path '1;32' --smart-case --stats
--el -- 'mode-line' .

Result:
without --vimgrep
ESC[1;32mw32-ime.elESC[0mESC[K
ESC[1;33m24ESC[0mESC[K:22:(defvar w32-ime-show-ESC[30;43mmode-lineESC[0mESC[K t
ESC[1;33m26ESC[0mESC[K:17:(defvar w32-ime-ESC[30;43mmode-lineESC[0mESC[K-state-indicator

with --vimgrep (which is neccesary for ag.el)
w32-ime.el:24:22:(defvar w32-ime-show-mode-line t
w32-ime.el:26:17:(defvar w32-ime-mode-line-state-indicator "[O]"

Obviously, this cause the problem. Does anybody resolve this?

[nrsaty]

I found a solution.
--vimgrep option is disturbing highlight, and it is introduced for issue 101 fix.
When using emacs on msys2, this fix did not needed.
Comment out following line from ag.el (from line 234-236), and everything worked normaly.

;; (when (or (eq system-type 'windows-nt) (eq system-type 'cygwin))
;;   ;; Use --vimgrep to work around issue #97 on Windows.
;;   (setq arguments (cons "--vimgrep" arguments)))

I am using self-build emacs on msys2.
Do not know about pre-build version on msys2 (installed by pacman).