magic axe / mythic axe not replanting or giving blocks for giant mushrooms

Minecraft Username:
FuriuosGeorge

Brief Description:
When using the magic or mythic axe on giant mushrooms in replant mode it doesn't give the blocks or replant the shrooms.
the tool has silk touch so the blocks should be given.

Instructions:
switch mythic to treefeller replant mode and smack a giant mushroom

How many times did you recreate this?:
3

Result:
receive the mushrooms but not the blocks

Expected Result:
inventory full of stems and mushroom blocks

Evidence:
none provided, but I have a test farm that can be used if desired.