qmlls erases user code when updating implicitly defined signal handlers

Before clicking the lightbulb

Warning:

no matching signal found for handler "onWidthChanged": Implicitly defining onWidthChanged as signal handler in Connections is deprecated. Create a function instead.

After clicking the lightbulb

Error:

Unexpected token `...'

Expected outcomes
qmlls should place the existing code – `console.log("New width:", root.width)` - inside the function block rather than erasing it