Online check failure does not downgrades service

While testing the online check on continuous mode, I found out that it does not downgrades the service after the threshold is met.Seems like ipv6 being on state (ready) already prevents the downgrade. My assumption comes from inspecting

src/service.c:is_online_check_failure_threshold_met_predicate

Is this the correct behavior?

connman is on master@807ad961777ffffad36f53ea034583466a7073de

my main.conf file :
[General]
PreferredTechnologies=wifi,ethernet
DefaultAutoConnectTechnologies=wifi,ethernet
BackgroundScanning=true
EnableOnlineCheck=true
OnlineCheckConnectTimeout=10
OnlineCheckMode=continuous
OnlineCheckIntervalStyle=geometric
OnlineCheckInitialInterval=1
OnlineCheckMaxInterval=8
OnlineCheckFailuresThreshold=1

relevant log:
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:online_check_counters_log() service 0x18f29b0 (wifi_e8fb1ccdfacb_6d7563686f626f6d3547_managed_psk) ipv4 state 5 (online) failure(s/es) 2 ipv6 state 4
(ready) failure(s/es) 0
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:online_check_counter_threshold_is_met() service 0x18f29b0 (wifi_e8fb1ccdfacb_6d7563686f626f6d3547_managed_psk) failure threshold 1 failure(s) met 0
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:handle_continuous_online_check_failure() failures threshold was met 0 failures threshold is met 0 default 1
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:online_check_counters_log() service 0x18f29b0 (wifi_e8fb1ccdfacb_6d7563686f626f6d3547_managed_psk) ipv4 state 5 (online) failure(s/es) 2 ipv6 state 4
(ready) failure(s/es) 0
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:online_check_counter_threshold_is_met() service 0x18f29b0 (wifi_e8fb1ccdfacb_6d7563686f626f6d3547_managed_psk) failure threshold 1 failure(s) met 0
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:handle_continuous_online_check_failure() failures threshold was met 0, default 1
connmand[2065]: /usr/src/debug/connman/1.43-r0/src/service.c:complete_online_check() reschedule online check 1