I had an opportunity to get an internship recently and made it through a few rounds of interviews, but on my last interview, I didn't do very well. This resulted in getting rejected for the potential job offer, and in the email I received from my recruiter telling me that they weren't going to be moving forward with my candidacy, they said that they hope I reapply next year and to "please keep in touch".
What does it mean exactly when they say "please keep in touch"? Is it just a polite thing that is customarily said or do they expect me to actually "stay in touch"?
If so, what does it mean exactly in this particular scenario to "keep in touch"?