This anomaly applies to IC Rev. Engineering A, build codes QFAA-AA0, QFAA-AC0, CGAA-AA0.
Using the mode where watchdog is paused in CPU Idle, the current consumption jumps from 3 µA to 400 µA.
NRF_WDT->CONFIG = (WDT_CONFIG_SLEEP_Pause<<WDT_CONFIG_SLEEP_Pos);
Reduced battery life
Do not use mode where WDT is paused when CPU sleeps