restart portal after a change while having connection

[HolasoyLorenzo]

I just installed on a PI 4B with the new instructions and that works I think good. Although a bit of strange behaviour, not sure this is normal.

After installation, I pulled out the ethernet cable, I would expect the broadcasting of the SSID at that moment.
It does not happen.
When I change someting like "$sudo wifi-connect -u "tatata" the portal is created, not earlier.

I then connect with the portal and enter ssid/pwd. It connects as expected to the wifi.

When I change something else "$sudo wifi-connect -a 300", the portal is created again! I'm not sure that's needed because I'm already connected.

I also can not find in the docs what happens with the timout. I suppose the portal stops after that? But what then?