Some components have unexpected implicit default value behavior

It was mentioned in the changelog of 1.20.5 that:

Components equal to their default value on the target item will not be stored

Some components uses weird implicit default values, causing the following issues:

1. Manually specified default values are stored (as opposed to what 1.20.5 changelog says)

2. The implicit default values don’t pass data component exact matches

I found these components affected:

• chicken/variant

• damage_type

• jukebox_playable

Steps to reproduce:
(jukebox_playable is the most obvious one because it has data component predicate)

1. Take Music Disc 5 from creative inventory and hold it in mainhand

2. Run the test command in chat:
   → ✅ The test passes as expected

   /execute if items entity @s weapon *[jukebox_playable~{song:"5"}]

3. Run the test command in chat:
   → ❌ The test fails

   /execute if items entity @s weapon *[jukebox_playable="5"]

4. Run the command to get another Music Disc 5 and hold it in mainhand:

   /give @s music_disc_5[jukebox_playable="5"]

5. Run the command to see stored component value:
   → ❌ jukebox_playable component is stored

   /data get entity @s SelectedItem

6. Repeat step 2 and 3 with the new music disc
   → ✅ Both pass as expected