Extraneous characters written when using Alt+Right on some editors

[rokleM]

Right now I can reproduce this in Visual Studio with R# and Sublime Text. If I do Alt+Right I get a ♠ character when I key up the Alt key.

If I close SylphyHorn, the problem goes away.

[tmyt]

This problem fixed in upstream project. We should update NuGet package. cc:@Grabacr07