Retirement tax questions

So if sell my 2019 over-contribution for a net loss, I assume I will I still get a 1099-R for the transaction, but it will just show a 0.00 for box 2a. If this is the case, then:  

 

Do I even need to enter anything proactively in my 2019 taxes to prevent having to ammend them when i get my 2020 1099-R? Other feeds have stated you can enter the transaction proactively knowing you'll get a 1099-R next year, but in my case, i will have a net loss, not a net gain. It seems i either could just not enter anything (since no gain), or proactively enter the transaction showing the zero gain.