RAR-Anti blacklist question OK

[Giest7481]

assume i uploaded a rar file which is deleted due to copyright issue, now i upload same file again without any changes z-o-o-m will upload that file. now will it work third time? if original file md5 hash remain same?
and is the md5 hash change before upload? or it's change only when file is backlisted? like file upload=>host reject=>before retry upload change md5 hash and then upload.

[z_o_o_m]

This function adds few extra bytes to the file to change its hash.
It is done during uploading process (without changing file on the drive)
everytime the option field is checked.