Large amethyst cluster does not break if there's a block infront of it

Hello! I would like to report a minor bug I found about large amethyst clusters not breaking if the block that it is on (I only tested with amethyst block) is broken, if there is another block infront of it.

How to recreate:

step 1.

place an amethyst block with a large amethyst cluster on any side

step 2.

place a block infront of the amethyst cluster.

Step 3.

break the amethyst block

the amethyst cluster will float in midair!