All text is highlighted when starting a substitute with very magic when hlsearch and incsearch are active

[blayz3r]

Similar to vim/vim#3363

[osyo-manga]

hi, Thanks for issues.
All text match by /\v ?

[blayz3r]

hi, Thanks for issues.
All text match by /\v ?

Yes, /\v matches everything instead of nothing

[blayz3r]

BUMP

[osyo-manga]

Sorry for my late reply.
This is because all text is highlighted with :call matchadd("IncSearch", '\v').
I think this is a Vim specification (or bug).