Brushing "fixed" Suspicious Blocks gives inconsistent item counts.

If I brush a fixed Suspicious Block that has 28 items, it should give me 28 items back, but it doesn't. (28 is just an example, but you get the idea)

Steps to reproduce:

• `/setblock ~ ~ ~ minecraft:suspicious_sand{item:{id:"minecraft:gold_nugget",Count:24b}}`

• Brush the block that was just placed down.

• See that the items' stack size isn't 28.

• The number isn't fixed either - you get a different stack size each time you do this.

Extra information:

After further testing, I've seen that the number breaks starting from 24 all the way to 64.
(I got lazy, it could happen for numbers below 24 too, I haven't checked this yet)
Please fix this, I'm making an adventure map that features lots of coins hidden in suspicious sand blocks, and I really wanted the brushed amount to be correct. Thanks!