main: alias style overrides precommand style

highlighters/main/main-highlighter.zsh

@@ -650,7 +650,7 @@ _zsh_highlight_main_highlighter_highlight_list()
      next_word=':start:'
    elif [[ $this_word == *':start:'* ]] && (( in_redirection == 0 )); then # $arg is the command word
      if (( ${+precommand_options[$arg]} )) && _zsh_highlight_main__is_runnable $arg; then
-      style=precommand
+      [[ $res != alias ]] && style=precommand
       flags_with_argument=${precommand_options[$arg]%:*}
       flags_sans_argument=${precommand_options[$arg]#*:}
       next_word=${next_word//:regular:/}

highlighters/main/test-data/noglob-alias.zsh

@@ -31,6 +31,6 @@ alias x=command
 BUFFER='x ls'
 
 expected_region_highlight=(
-  "1 1 precommand" # x
+  "1 1 alias" # x
   "3 4 command" # ls
 )