wifi: NetworkManager spams the logs with "state changed new lease" every minute

Hi,

Under Debian/unstable, with a wifi connection from the train,
NetworkManager spams the logs with "state changed new lease"
regularly every minute: what is the cause?

Jun 28 11:57:41 qaa NetworkManager[1264]: <info>  [1782640661.4715] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 11:58:41 qaa NetworkManager[1264]: <info>  [1782640721.4779] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 11:59:41 qaa NetworkManager[1264]: <info>  [1782640781.4714] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:00:41 qaa NetworkManager[1264]: <info>  [1782640841.4725] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:01:41 qaa NetworkManager[1264]: <info>  [1782640901.4717] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:02:41 qaa NetworkManager[1264]: <info>  [1782640961.4726] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:03:41 qaa NetworkManager[1264]: <info>  [1782641021.4729] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:04:41 qaa NetworkManager[1264]: <info>  [1782641081.4736] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:05:41 qaa NetworkManager[1264]: <info>  [1782641141.4737] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:06:41 qaa NetworkManager[1264]: <info>  [1782641201.4797] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:07:41 qaa NetworkManager[1264]: <info>  [1782641261.4800] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:08:41 qaa NetworkManager[1264]: <info>  [1782641321.4821] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:09:41 qaa NetworkManager[1264]: <info>  [1782641381.4870] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:10:41 qaa NetworkManager[1264]: <info>  [1782641441.4812] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:11:41 qaa NetworkManager[1264]: <info>  [1782641501.4754] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:12:41 qaa NetworkManager[1264]: <info>  [1782641561.4745] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:13:41 qaa NetworkManager[1264]: <info>  [1782641621.4764] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:14:41 qaa NetworkManager[1264]: <info>  [1782641681.4647] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171
Jun 28 12:15:41 qaa NetworkManager[1264]: <info>  [1782641741.4766] dhcp4 (wlp0s20f3): state changed new lease, address=10.7.0.171