That occurs quite frequently, many folks here have encountered that. You can just take a fine file and knock off that little bur or some fine sandpaper. Once it's smoothed off it normally doesn't return.
If you just leave it it will probably not get much worse. Just fitting itself a little bit. Doesn't hurt anything. I'd probably clean it up a little as it is a sharp edge that can cut your finger and I do so hate the sight of blood on stainless steel.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."