This was broken in 11.0 if the media dialog was the first dialog to be
opened when using the editor. This happened for two reasons:
- Never use a widget (dialog)'s `$el` before it is started (opened).
This was the case here. The bug is even worse in saas-11.1 as we do
not allow to do that from there so it results in a JS crash.
- It worked in <= saas-16 because dialogs were started at once as they
did not need to load anything. In >= 11.0, the first dialog which is
opened in the page needs to request the main dialog template and this
takes some time.
So, this fix makes sense in >= 9.0 but I chose to merge it in 11.0 as it
only induces a real bug from there.
qsm-odoo
d3cebdc4a2