[FIX] web_editor: html widget empty value stay empty

The html widget automatically replace an empty field value by
`<p><br></p>` to be able to add content.

But this may cause unintended "onchange", since the value has "changed"
and the onchange themself could cause error when triggered at the wrong
time (eg. inside a list view with required fields).

With this changeset, the onchange is averted when the value was false
and is now `<p><br></p>`.

opw-1906581
closes #31078

0 files changed, 0 insertions, 0 deletions