Statistics and minecraft.used objectives do not increase when items are used on mobs/entities by right-clicking

The bug

Using items on mobs does not count as using them in either the statistics screen, or if a minecraft.used objective is created for them, even if using the item in other ways does count.

• Breaking blocks such as leaves and tall grass by left-clicking with shears is counted as using the item, but shearing sheep or mooshrooms with right-click is not.
• Eating food such as apples or carrots is counted as using the item, but feeding them to an animal is not.
• Feeding bones to wolves does not count.
• Using a saddle on an animal will not count as using the item.
• flint_and_steel is counted when right-clicking on a block, but not when right-clicking on a creeper, which causes it to detonate.
• Scooping up water or lava with a bucket counts as using the item, but milking a cow does not.
• Using a lead on a fence counts, but using it on a mob does not.
• Using a name_tag on a mob does not count.
• Using a spawn egg on the ground counts, but using it on a mob such as a cow to spawn baby cows does not.
• Using wheat_seeds on farmland to plant them counts, but feeding them to a chicken does not.
• Using bonemeal on grass or plants counts, as does using cocoa beans on jungle wood, but using them or any other dyes on on sheep or wolves does not count.
• Using coal or charcoal on minecart furnaces
• Dyeing a sheep/wolf/cat

This means that items which are only used by right-clicking on a mob cannot be tracked with a scoreboard, particularly name_tags and saddles.

How to reproduce

1. Change the name of a name tag
2. Type this command /scoreboard objectives add NameTagTest minecraft.used:minecraft.name_tag
3. Type this command /scoreboard objectives setdisplay sidebar NameTagTest
4. Use the name tag with a mob
   → The scoreboard won't increase