system.temp_path doesn't return override directory

According to the wiki

TempDirectory
Default: ctrl/../temp

Override the default system “temp” directory (optional). If you do override this, do NOT use the system-wide temp dir (e.g.: /tmp or windows\temp),

In sbbs.ini I have

# grep TempDirectory /sbbs/ctrl/sbbs.ini
        TempDirectory = /sbbs/tmp/

However:

Time Used: 0:14:26 -> Main Menu -> ;
eval system.temp_path
Result (string): /tmp/      

I feel this should return /sbbs/tmp since that is where I want sbbs to write temporary files. There seems no other way to access this TempDirectory assigned path.