Silverfish do not attacked when player destroyed infested stone

Silverfish do not attacked if player destroyed Infested stone. It also don't attacked whenever you summon it via command, it will just stay on ground then later walk around, it ignore players.

Steps to reproduce:

• Open survival world and destroy infested block
• Summon silver fish via spawn egg or command in survival mode

Observe result:

• Once infested block is destroyed it will immediately attack player and do not ignore player or standby for a long time

Expected result:

• Silver fish ignore players if infested block is destroyed or were summon via spawn egg and command even a player mode is survival