GSTAT error- hotend cooling while resting

[ptegler]

  suggestion:  After a GSTAT error.... you're left with a HOT hotend and no fan to cool it while
  executing a restart.   Heat creep and probable clogs a result if not there to clear it asap.
  Turning that HE fan back on quickly supposedly can be accelerated by having the MCU turn it
   back on asap, using the 'initial_pins' setting in 'make menuconfig' and then let Klipper override 
   that as it starts (processes configs as needed) 
   
   see https://discord.com/channels/582187371529764864/859890291591217162/1072355483249279037
   and orig Q the Klipper Dev at https://discord.com/channels/431557959978450984/801826273227177984/1072065882811019315
   and final clue at https://discord.com/channels/431557959978450984/801826273227177984/1072249552645656708