It did end up having that effect, which is why Hillel the Elder created a device called the "Prozbul" which transferred debt to the court before the Jubilee year, thus preventing forgiveness and enabling borrowers to borrow even close to the Jubilee. This is one of the few (maybe only) true loopholes invented by the Rabbis, with the justification "so as not to close the door to borrowers."

Edit: Wikipedia link https://en.wikipedia.org/wiki/Prozbul