Using vi to edit files on an AWS instance can cause strange characters to be inserted

 This is a short one because I came across it the other day and I almost freaked out. I ssh'd into an AWS Alpine Linux instance using MobaXterm on Windows, and I edited a file with vi. I then saved it and re-opened it, and any lines that I added or modified were just messed up. I didn't get to the root of the issue, but I found that using the nano editor did NOT have this same problem. Strange, but wanted to document it in the hope that it may help someone else.