Misspelled words are not highlighted

[jonsmithers]

Problems summary

With set spell, misspelled words become invisible when I set termguicolors (the red highlight disappears).

Expected

I expect misspelled words to always be visible when spell is set.

Environment Information

	notermguicolors	termguicolors
vim 8.0
neovim 0.2.2

As you can see, the issue only exists in vim 8.0 with termguicolors enabled (do you support vim 8?)

• terminal: the screenshots above were produced in Tilix, but gnome-terminal and iTerm seem to behave the same way
• vim/nvim version: vim 8.0, nvim 0.2.2

minimal vimrc

set runtimepath^=~/.vim/plugged/oceanic-next/
colorscheme OceanicNext
set spell

Reproduction Steps

1. vim -u minimalvimrc
2. Type some misspelled words. They are highlighted red.
3. :set termguicolors
4. Red highlights on misspelled words.

[jonsmithers]

....well, I can repeat this behavior on the default vim theme, so it clearly has nothing to do with oceaic-next. I guess it's purely a vim 8 thing.

[mhartington]

Hey sorry for the radio silence on my end, I've been traveling for work. Glad to see this is all sorted out

[jonsmithers]

All good, I appreciate the support! Sorry for the misguided issue.