upgrade-html-field-type (U1602)

body_html of a mail template loaded with type="xml", deprecated in Odoo 16.0.

Applies to Odoo 16.0 and later.

What it does

Reports <field name="body_html" type="xml"> in mail.template records.

Why is this bad?

Odoo 16.0 serialises HTML fields as HTML and warns about type="xml" (“HTML field is declared as type=xml”): self-closing tags such as <br/> and empty elements can come out differently.

Fix safety

Safe: the type becomes html.