Multiline Input automatically parse {}

Hi, I'm testing some custom nodes that require formatting multiline string parsing over stacking.

When I input on a single line line input widget something like: `Hello {} !`
The output remains `Hello {} !`

But if I input `Hello {} !` on a multiline widget the output will be always: `Hello !`

Is there a why and a way to prevent this programmatically on my custom node, on the input class?