The bug

I wanted to get the pillagers flag in my world and got a bad omen and I was in the village with the villagers and the Raid started but command "/gamerule doMobSpawning" was off ( false )

How to reproduce

1. Locate and enter a village:

   /locate village

2. Set the doMobSpawning gamerule to false:

   /gamerule doMobSpawning false

3. Give yourself the bad omen status effect:

   /effect give @s bad_omen

   → Raid mobs are spawned near the village