Robots.txt path incorrect when Disallow is empty

[pes-soft]

Hi, If robots.txt contains Disallow line with no path, joomscan incorrectly displays the interesting path. robots.txt:

User-agent: *
Disallow:

Output:

[++] robots.txt is found
path : http://target.example.org/robots.txt 

Interesting path found from robots.txt
http://target.example.orgisallow: