Ender Dragon egg reappears

Upon killing the dragon in 1.18.30, the egg reappears even though the Ender Dragon has already been killed in a previous version.

Steps to reproduce:
 - Play on an older version (using a third-person version switcher for example, eg. the BedrockLauncher)
 - Defeat the EnderDragon
 - Update to 1.18.30
 - Kill the dragon again
 - The Dragon Egg will reappear
Expected behavior: It doesn't.

I have only reproduced the glitch in BDSs, the bug may only be there. It it is the case, I will move the issue to the BDS project.