According to [1], the update function can be called before the tip
is rendered (i.e. when this.$el is null). [1] aimed at preventing
that function to crash when called in that situation. However, if
the function _delegateEvents is called and this.$el is null, it
crashes as well. This was a cause of non deterministic runbot
failure.
[1] a34cd7c662
Runbot build error: 3382
X-original-commit: 66dd147eb6d0aab10bf4d8883fa4965b76f55de8
Part-of: odoo/odoo#85573
Aaron Bohy
a451596ba4