which-key breaks `vim.v.count` in visual mode

This bug has been reported in which-key here, but that was 2 years ago so it seems unlikely that it will be fixed. Making an issue here for discussion.

Reproduction

1. Go to this line (currently 901 on master), and put your cursor on the first '. I marked cursor pos with | |
local parsers = { |'|bash', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'markdown_inline', 'query', 'vim', 'vimdoc' }
2. Type v]n2]n
   Confirm that 'diff' is selected when in reality 'html' should be selected
3. To confirm that which-key is the issue, remove the installation lines for only which-key, and do the above steps again

Discussion
While certainly an edge case, this is indeed a bug. #2046 stops which-key from triggering in visual mode to fix this, but I don't think it's a good solution. Open to discussion for better solutions.

Reproduce the visual-mode sequence v]n2]n at the indicated parser list, first with which-key installed and then without it. Read the discussion in #2046 and the linked which-key issue to understand how the plugin affects vim.v.count; done means visual-mode counts select the expected item without breaking which-key behavior.