When creating a contenteditable element, as shown in this flems, the text is created twice (only on first render, not when updating the page).

The issue is, most likely, caused by the fact that the following source code function never returns true (i.e.. maybeSetContentEditable always returns undefined).

Mithril version: 2.0.3

Browser and OS: Tested on both chrome and Edge (developer), Windows 10

Code

const MyComponent = {
  view: () => m('div[contenteditable]', m.trust('<i>Hello, world</i>')),
};

m.render(document.body, m(MyComponent));

Expected Behavior

I should only see

<i>Hello, world</i>

and not

<i>Hello, world</i><i>Hello, world</i>