note: this is a hidden cli argument.
raw details (from release v2.2.3):
{
"name": "delay_leader_block_for_pending_fork",
"properties": {
"hidden": "hidden_unless_forced()",
"long": "delay-leader-block-for-pending-fork",
"takes_value": "false",
"help": "\n \"Delay leader block creation while replaying a block which descends from the \\\n current fork and has a lower slot than our next leader slot. If we don't \\\n delay here, our new leader block will be on a different fork from the \\\n block we are replaying and there is a high chance that the cluster will \\\n confirm that block's fork rather than our leader block's fork because it \\\n was created before we started creating ours.\",\n "
},
"isDeprecated": true
}