cat < /dev/ur*ndom
fish should highlight /dev/ur*ndom with $fish_color_redirection or don't execute command correctly
fish highlights /dev/ur*ndom with $fish_color_error but executes command correctly
$ fish --version
fish, version 2.2.0
Correctly set the generation count for background highlighting threads
We were neglecting to set the generation count for the background highlighting thread, so we were always cancelling the highlight (thinking we were interrupted).