Hi guys, new Obsidian user here (Obsidian is great so far btw. 
) and also hit by this little cosmetic problem.
I think, the most natural solution would be to place the cursor at the end of the note rather than at the beginning. Usually the user wants to continue writing where he stopped the last time, which is at the end of the note. As a byproduct, the formatting of the first line wouldn’t be broken. To prevent the last line from getting borked, maybe add an trailing empty line, then place the cursor into it.
Obviously, I’m not able to create a plugin implementing the idea, but if anybody likes the proposal and has the necessary skills and time resources… would be great!