Do mutual funds get sold and does that then reset their inception date?

I have a 401k that's over 10 years old. I made selections of which investments my contributions went into when I opened it and haven't changed them.

I would not have selected anything with less than a 10 year track record, but one fund (Harbor Capital Appreciation CIT Class 2) is showing as having an inception date of 2020.

That confuses me a great deal.

Can someone explain how that would be? I chose the investments in the 401k back in 2015, 5 years before the stated inception date of that fund.