del /S command is not properly implemented in cmd

Steps to reproduce it:
Try the following sequence in reactos cmd (running under React OS)

1) create a directory

mkdir test

2) create a subdirectory of it and a file inside it

cd test
mkdir subtest
echo "hola"> testfile.txt

3) Now run del /s from c:\

cd c:\
del /s test

As you can see in the screenshot, the file testfile.txt is still there!

According to the documentation in

https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/del.mspx?mfr=true

the switch /s "Deletes specified files from the current directory and all subdirectories. Displays the names of the files as they are being deleted. "

[ It seems that the files should be deleted, but not the directories test and subtest]

The file /base/shell/cmd/del.c where the del internal command is implemented says:
"Optimized the recursive deletion in directories." so I guess this should work.
(The symbol DEL_SUBDIR corresponding to the /S flag appears only 3 times in the source)