inetc::get bug?

[daisywheel]

I do next call
inetc::get "www.somesite.com/File.txt" $TEMP\File.txt

in case File.txt exists in $TEMP folder it's rewritten BUT
only the part of data not more then in file on server actually rewritten.

Example:
File.txt in $TEMP
AAAAAAAAAAAAAAAAAAA
File.txt on www.somesite.com
BBBBBBB

Acctual Result:
File.txt in $TEMP after call mentioned above:
BBBBBBBAAAAAAAAAAAA

Expected result:
BBBBBBB


Is it bug?