This would allow wallet operations like funding transactions with smart contract-based inputs such as LN, or any input the Core wallet doesn't know how to sign for.

https://github.com/bitcoin/bitcoin/pull/17211#issuecomment-933674310
{
    uint32_t locktime;
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    if (IsCurrentForAntiFeeSniping(chain, block_hash)) {
        locktime = block_height;