The space font provider allows the definition of floats for advances. This is generally very useful, because many players play on gui-scales larger than 1 and this allows for more precise control over spaces between characters. However, when an advance translates to a space that is smaller than 1px, the following character is stretched in a weird way.

Observed behavior:

In the following example, I've configured the character 'a' to be a space of 0.5 units:

{
    "providers": [
        {
            "type": "space",
            "advances": {
                "a": 0.5
            }
        }
    ]
} 

When playing on gui-scale 1 and writing `AaA` in the chat, it looks like this:

 
This always happens when `advance * guiScale` is not an integer.

Expected behavior:

I'd expect that `advance * guiScale` would either rounded or truncated to an integer, or that they stack and a space is rendered once they've reached 1px