0.5.0-rc1 Animated png panics

[woelper]

Opening an apng image panics with

thread '<unnamed>' panicked at .cargo/registry/src/index.crates.io-6f17d22bba15001f/zune-png-0.5.0-rc1/src/apng.rs:269:28:
range end index 400 out of range for slice of length 100

(This is 0.5.0-rc1)

Image to reproduce:

[etemesi254]

Hi, animated png has been a thorn after the first issue you reported, and even more because I can't find a simple existing codebase to explain how to handle some things,
kindly bear with me, this is an issue I'm well aware of

[woelper]

Thank you so much. No rush, and thank you for your great work!