When a block with gravity falls on a piston that is being moved by another piston it breaks like when falls onto a slab

Expexted result: Block with gravity falls with the piston without problems.

Actual result: Block with gravity breaks and drops item like when falls onto a slab or half blocks.

How to replicate: Place two sticky pistons facing upwards, one over another, then place a lever powering the lower one, last is placing a block with gravity above the upper piston, activate and deactivate the lever, block with gravity should break.

It can affect doors that use double or triple extensor mechanisms and moving sand or gravel.