Problem where the autosize of the linenumbers is incorrect

[pyscripter]

I'm seeing a problem where the autosize of the linenumbers is incorrect if I change the editor font and have UseFontStyle set to false (which I think means to use the editor font in the gutter.) I think the situation is that TSynGutter.CalcCharWidth is called when the editor is created but not updated if the font of the editor changes. In my case the initial editor font is Consolas 10 and then I change it in code to Consolas 12, and after that the line number display is too narrow. I'm testing with 50,000 lines or so and scrolled to the bottom to show the issue best.
-Mark

Originally posted by @MShark67 in #86 (comment)