Worlds updated from 1.8 - 1.12  (still supported versions for direct upgrades) to 1.13 - [current version] can have the dirt crafted statistic instead of coarse dirt crafted statistic.
How to reproduce:

1. Begin world in any version after 1.7.10 and before 1.13
2. Craft coarse dirt
3. Upgrade to any version after 1.12.2
4. Observe the dirt crafted statistic

What I expected:

Before 1.13, the data value of crafted items was not tracked. For example, this means if the player crafted jungle planks they would count as oak planks. Coarse dirt during these versions was dirt with data value 1 and so was tracked as crafting normal dirt. After the update, the game should realize that crafting regular dirt is impossible and convert this statistic to coarse dirt. The epitome of what should happen is found in the pumpkin/jack o' lantern. Jack o' lanterns were tracked with the pumpkins in statistics. After updating that statistic, however, the game converted the crafting pumpkin statistic to the actually possible crafting jack o' lantern statistic but kept other statistics possible with pumpkins, such as placing them. The pictures below show a world upgraded from 1.12.2 to 1.16.4 Release Candidate 1 and depicts the inconsistency between the two: