BB code The original image (original size)
 

Please return the possibility to use BB code of the original image as it was before.

Can't get the code for the full sized (original) image, the sooner you can switch to the original and take it the code how to do it now.
BB code >> Large does not give such possibility.

Thank you is working!

How is it working for you? I do not see original file sizes?

Nope, wrong. Large size is still NOT original size....750px what people are looking for is what the true size of the image not a Thumbnail size that happens to be large.