board reset on log level DEBUG over gn_mqtt_protocol

[ogghst]

when raised log level with
esp_log_level_set("gn_mqtt_protocol", ESP_LOG_DEBUG);
the board seems not to be able to keep wifi connection. Possible bug in ESP-IDF MQTT implementation (see #5876 )

...
I (3708) grownode: _gn_leaf_start blink
D (3808) gn_mqtt_protocol: publishing leaf blink
D (3808) gn_mqtt_protocol: subscribing leaf. topic: /grownode/test/blink/cmd
D (3808) gn_mqtt_protocol: sent subscribe successful, topic = /grownode/test/blink/cmd
D (3818) gn_mqtt_protocol: Event dispatched from event loop base=MQTT_EVENTS, event_id=3
D (3818) gn_mqtt_protocol: MQTT_EVENT_SUBSCRIBED, msg_id=26691
I (3828) grownode: _gn_start_leaf blink completed
D (3838) gn_mqtt_protocol: gn_mqtt_send_leaf_param status
D (3838) gn_mqtt_protocol: sent publish successful, msg_id=0, topic=/grownode/test/blink/status/sts, payload=0
D (3848) gn_mqtt_protocol: gn_mqtt_send_leaf_param inverted
D (3858) gn_mqtt_protocol: sent publish successful, msg_id=0, topic=/grownode/test/blink/inverted/sts, payload=0
D (3868) gn_mqtt_protocol: gn_mqtt_send_leaf_param gpio
D (3868) gn_mqtt_protocol: sent publish successful, msg_id=0, topic=/grownode/test/blink/gpio/sts, payload=2.000000
I (4588) wifi:state: run -> init (0)
I (4588) wifi:pm stop, total sleep time: 1109972 us / 2272570 us

W (4588) wifi:<ba-del>idx
I (4588) wifi:new:<11,0>, old:<11,0>, ap:<255,255>, sta:<11,0>, prof:1
E (4598) gn_network: Wifi disconnected. reason: 8
I (4598) gn_network: Retry to connect - attempt 0 of 5
W (4608) wifi:hmac tx: ifx0 stop, discard
W (4608) wifi:hmac tx: ifx0 stop, discard
E (4618) TRANSPORT_BASE: poll_read select error 113, errno = Software caused connection abort, fd = 54
E (4628) MQTT_CLIENT: Poll read error: 119, aborting connection
D (4628) gn_mqtt_protocol: Event dispatched from event loop base=MQTT_EVENTS, event_id=2
D (4638) gn_mqtt_protocol: MQTT_EVENT_DISCONNECTED
D (4648) gn_mqtt_protocol: _gn_mqtt_on_disconnected
D (4648) gn_mqtt_protocol: _GN_MQTT_CONNECTED_KO_EVENT_BIT
I (4698) wifi:flush txq
I (4698) wifi:stop sw txq
I (4698) wifi:lmac stop hw txq
ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:6608
load:0x40078000,len:14780
load:0x40080400,len:3792
0x40080400: _init at ??:?

entry 0x40080694
I (27) boot: ESP-IDF v4.4-rc1 2nd stage bootloader
I (27) boot: compile time 12:18:20
I (27) boot: chip revision: 1
I (30) boot_comm: chip revision: 1, min. bootloader chip revision: 0
I (37) boot.esp32: SPI Speed      : 40MHz
I (42) boot.esp32: SPI Mode       : DIO
I (46) boot.esp32: SPI Flash Size : 4MB
...