incsearch highlighting disappears or is sometimes wrong

• [All versions] Occurs when using wilder#popupmenu_renderer() when searching
• [Neovim 0.5] Occurs for both wilder#popupmenu_renderer() and wilder#wildmenu_renderer() when searching and the current window view changes (e.g. moves due to incsearch)

See neovim/neovim#14064
See neovim/neovim#12495 (outdated)

A workaround is to use wilder#wildmenu_renderer({'mode': 'statusline'}) for searching.

Update: the statusline workaround doesn't work for Neovim 0.6 nightly.