Problems with mutate and input[type="datetime-local"]

[dudusotero]

Hello everyone! I'm here to show a quick problem I have at this moment.

Why when I submit a form and do a mutate with the new form values, all input with type "datetime-local" changes to another value?

I made a quick example of my problem, so everyone can check without do any code: link here

Gif with the occurring problem:

[sergiodxa]

The problem is that every time you update the cached value the post object is changed with a new one (same values, different reference), that triggers your effect where you update the form and create a new date.

[dudusotero]

@sergiodxa when the effect triggers, my post.date value, already changed. The problem occurs before setting a new Date.
:(

I don't have a solution for that problem yet, do you have some ideas of what I need to do to persist the value of post.date between mutations?