[FIX] web: widget noreset if rerendered for modifier

If we have a many2many_tags widget that is writable then becomes
readonly, we can have in the code this chain of event:

- get list of widgets we need to reset some data for
- apply modifiers
- reset the widgets

but applying modifiers can delete a widget (eg. an editable field that
becomes readonly), so when resetting we could call code on a deleted
widget which caused an error.

For example, if we have an attribute:

 `<field widget="many2many_tags" attrs="{'readonly': 'condition'}"/>`

if the field goes from editable to readonly and is affected by an
onchange, we will call `setIDForLabel` on the deleted instance of the
widget which will cause an error.

Added test without fix fails with error:

  TypeError: Cannot read property 'attr' of undefined
    at Class.setIDForLabel (/web/static/src/js/fields/abstract_field.js:324:35)

because as said, the function is called on the editable widget that is
removed and replaced with readonly widget at that point.

opw-2154471
closes #43137

closes odoo/odoo#43244

X-original-commit: 6f5ca16524be7c5bb45b03e7421154a20edc4cf6
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

0 files changed, 0 insertions, 0 deletions