quickhl_cword_enable_at_startup only work with the first buffer #16
Description
I have this let g:quickhl_cword_enable_at_startup = 1 in my vimrc, and I can see the highlight follows my cursor in test.txt if I launch vim using vim test.txt.
However, after opening another file in vim, like :e test1.txt, quickhl_cword seems only enable for the first buffer.
IMO, non-initial buffers should have auto-following highlight as well, if enable_at_startup is set.