fix windows tests

tests/automatic/broker/get_next/check_windows.bat

@@ -20,6 +20,8 @@ C:\Curl\curl.exe -v  --silent 127.0.0.1:5005/database/data/%groupid%/next?token=
 C:\Curl\curl.exe -v  --silent 127.0.0.1:5005/database/data/%groupid%/next?token=%token% --stderr - | findstr /c:\"_id\":2  || goto :error
 C:\Curl\curl.exe -v  --silent 127.0.0.1:5005/database/data/%groupid%/next?token=%token% --stderr - | findstr  /c:"not found"  || goto :error
 
+C:\Curl\curl.exe -d '' --silent 127.0.0.1:5005/creategroup > groupid
+set /P groupid=< groupid
 C:\Curl\curl.exe -v  --silent 127.0.0.1:5005/database/data/%groupid%/next?token=%token% --stderr - | findstr /c:\"_id\":1  || goto :error
 
 goto :clean