Convert 8 bit PNG to 1 bit PCX fails since v7.3

Since version 7.3 it seems 1 bit PCX conversion is broken. The resulting file is always 24 bit. With version 7.2.10 and below this code works as expected:

public static Stream ToMonochrome(this Bitmap bitmap, int width, int height, int degrees)
        {

            var stream = new MemoryStream();
            using (var img = new MagickImage(bitmap))
            {

                img.Resize(width, height);
                img.Rotate(degrees);

                img.Depth = 1;
                img.Format = MagickFormat.Pcx;
                img.ColorType = ColorType.Bilevel;

                img.Write(stream);
               
            }

            stream.Position = 0;
            return stream;

        }

Am I missing something that changed?

[dlemstra]

@paulcreo I can reproduce the issue and I will need to investigate why this has changed.

[dittodhole]

see #214, should have been fixed with 7.4.6 😃