Force Unity to stop playing if you have edited a source file. Helps avoid some editor crashes and false positives / error spam. To use, drop this script in an "Editor" folder in your project.

StopPlayingOnRecompile.cs

using UnityEditor;

[InitializeOnLoad]
public class StopPlayingOnRecompile
{ 
    static StopPlayingOnRecompile()
    {
        EditorApplication.update += () =>
        {
            if (EditorApplication.isCompiling && EditorApplication.isPlaying)
                EditorApplication.isPlaying = false;
        };
    }
}