The bug
I noticed that the snow blocks produces some dirt particles when broken.
How to reproduce
Make a block with labeled snow (also works with normal blocks)
Break the block
→ Notice the particles
Related issues
is duplicated by
relates to
Attachments
Comments

The dirt particles are from the dirt behind the snow. Even though you click, and only break the snow, your hand still "Contacts" the dirt behind it. If there were iron behind it, you would see iron particles.
That is correct, confirmed in 13w11a.
Confirmed.
This still happens in 14w17a.
Can confirm still an issue in 1.8.6.

Can reproduce in 1.13-pre6. It helps to hold down mouse for slightly longer, but not long enough to actually break the block behind the block broken.
Affects 1.15-pre4.
Somewhat related to MC-160995. If that gets fixed this might too, but we'll see.
Can confirm in 20w51a.
Can confirm in 21w05b.
Can confirm in 21w06a.
Can confirm in 21w07a. Video attached.
Can confirm in 1.16.5 and 21w08b.
Can confirm in 21w11a.
Can confirm in 21w15a.
Can confirm in 21w17a.
Can confirm in 1.17.
Can confirm in 1.17.1.
Can confirm in 1.18.1.
Can confirm in 1.18.2.
Can confirm in 1.19.
Can confirm in 1.19.2.