Wither cannot break moved blocks (moving piston)

The bug

Moved blocks (moving_piston) should be breakable by withers or it should at least be determined by the moved block type. It was a mistake (by Marcono1234) to include it in MC-113429 since the actual problem was MC-58556.

How to reproduce

• Summon a wither

  /summon armor_stand ~ ~ ~ {Invulnerable:1b,Passengers:[{id:"wither"}]}
  

• Place an piston extension block in the area in the wither can break

  /execute at @e[type=wither,liimit=1] run setblock ~ ~1 ~ moving_piston
  

• Punch the wither to make it break the block