GIF decode end with stream end is better end with terminator byte?

[ZhuXiaoChun]

GIFDecoder read frames end with terminator byte, but some gif file include terminator byte before end。
In attachment, the GIF include 36 frames (can read by photoshop or System.Drawing.Image), but ImageSharp read stop after 22 frame.

Code example：
https://github.com/ZhuXiaoChun/tmpFiles/blob/main/ImageSharp/GIFDecoder_CodeExample.png

GIF example：
https://github.com/ZhuXiaoChun/tmpFiles/blob/main/ImageSharp/GIFDecoder_GIFExample.gif