Advancement "It Spreads" gains before the sculk spreads

When you kill a mob near a sculk catalyst, once the mob dead, you will immediately gain this advancement and not need to wait until the catalyst is active and sculk matters spread.
I think this is a bug and I give two solutions:
1. Change the condition to until the catalyst is active and sculk matters spread and get this advancement
2. Change the name into "It will spread"