Before this commit, when deleting a message, there was a traceback.
This was caused by `MessageView/onComponentUpdate` wrongly assuming
`MessageView` from a single branching of identifying owner
(`messageListViewItemOwner`), when there is another one
(`deleteMessageConfirmViewOwner`), specific to when a message is
being deleted.
As a result, crash came from programming error of accessor on
undefined relational field.
Task-3055205
closesodoo/odoo#104995
X-original-commit: 1fbc125451c62b444ce49fa11c8216e52e299b64
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
Alexandre Kühn
b3de4ee4bd