Merge pull request #14767 from theHamsta/no-treesitter-mapping-to-non-existent

fix(treesitter): do not map hl_group when no mapping is set

runtime/lua/vim/treesitter/highlighter.lua

@@ -22,8 +22,6 @@ local _link_default_highlight_once = function(from, to)
   return from
 end
 
--- These are conventions defined by nvim-treesitter, though it
--- needs to be user extensible also.
 TSHighlighter.hl_map = {
     ["error"] = "Error",
 
@@ -116,7 +114,7 @@ function TSHighlighterQuery:_get_hl_from_capture(capture)
     -- From "Normal.left" only keep "Normal"
     return vim.split(name, '.', true)[1], true
   else
-    return TSHighlighter.hl_map[name] or name, false
+    return TSHighlighter.hl_map[name] or 0, false
   end
 end