add a separate disable flag for reconstruction

Author: agnxsh

beacon_chain/conf.nim

@@ -231,6 +231,11 @@ type
       desc: "Subscribe to the first half of column subnets"
       name: "light-supernode" .}: bool
 
+    debugDisableReconstruction* {.
+      defaultValue: true,
+      desc: "Disables column reconstruction for the currently running beacon node"
+      name: "debug-disable-reconstruction" .}: bool
+
     slashingDbKind* {.
       hidden
       defaultValue: SlashingDbKind.v2

beacon_chain/nimbus_beacon_node.nim

@@ -1776,6 +1776,10 @@ proc reconstructDataColumns(node: BeaconNode, slot: Slot) =
       node.dag.cfg.NUMBER_OF_CUSTODY_GROUPS div 2:
     return
 
+  # Currently, this logic is broken
+  if node.config.debugDisableReconstruction:
+    return
+
   logScope:
     slot = slot