Scripts recompile at relaunch after building a player

Hi,
Unity 2019.1.1f

I've just noticed that after my build is finished (scripts are recompiled after build is finished) and I close and launch Unity editor once again, it recompiles the scripts and assembly definition files at the launch. Is it a proper behavior in this version?

As far as I remember earlier it was doing the recompilation only after the build was finished but there was no recompilation at relaunch. I'm not sure if this is something about my project or maybe something was changed in one of the editor versions.

Maybe it was always doing the recompilation at relanunch and I'm wrong?

I've doublechecked this on another project and it looks the same there.