Update ADVANCED example using 'search' action

ADVANCED.md

@@ -515,20 +515,19 @@ remainder of the query is passed to fzf for secondary filtering.
 ```sh
 #!/usr/bin/env bash
 
+export TEMP=$(mktemp -u)
+trap 'rm -f "$TEMP"' EXIT
+
 INITIAL_QUERY="${*:-}"
 TRANSFORMER='
   rg_pat={q:1}      # The first word is passed to ripgrep
   fzf_pat={q:2..}   # The rest are passed to fzf
-  rg_pat_org={q:s1} # The first word with trailing whitespaces preserved.
-                    # We use this to avoid unnecessary reloading of ripgrep.
 
-  if [[ -n $fzf_pat ]]; then
-    echo "search:$fzf_pat"
-  elif ! [[ $rg_pat_org =~ \ $ ]]; then
+  if ! [[ -r "$TEMP" ]] || [[ $rg_pat != $(cat "$TEMP") ]]; then
+    echo "$rg_pat" > "$TEMP"
     printf "reload:sleep 0.1; rg --column --line-number --no-heading --color=always --smart-case %q || true" "$rg_pat"
-  else
-    echo search:
   fi
+  echo "+search:$fzf_pat"
 '
 fzf --ansi --disabled --query "$INITIAL_QUERY" \
     --with-shell 'bash -c' \