The bug

The bug/inconsistency:
If you're in Adventure Mode, you can still alter some blocks or their states, which could be an issue, even more so if map-/Vanilla mod makers use different textures for each block state.

Expected
People in adventure mode not being able to alter certain blocks (or their states).

Example
Jukebox: Player can eject music disc, but not insert
Note blocks: rightclick still changes the tone and thus the possible alternate texture/model
Flower Pot incl. content: Content can be taken out of flower pot as well as inserted again

Following a list of blocks which can be interacted with as well as not interacted with; the listing does not suggest to change all of them, but is just made for an overview, to better decide which make sense to keep their current behaviour, and which should be changed.

—

Can be interacted with in adventure mode

(Trapped) Chests: Can be opened, things taken out and put in
Chests in Minecarts: Can be opened, things taken out and put in
Shulker Boxes: Can be opened, things taken out and put in
Ender Chest: Can be opened, things taken out and put in
Dispenser: Can be opened, things taken out and put in
Furnace: Can be opened, things taken out and put in
Crafting table: Can be accessed, things can be crafted
Flower Pot incl. content: Content can be taken out of flower pot as well as inserted again
Buttons: Can be activated by rightclicking
Wooden buttons: Can be activated by player shooting an arrow at them
Pressure Plates: Can be activated/stepped on
Armor Stand: Armour can be taken from a regular armor stand (and equipped)
Furnace in Minecart: Can be broken (into furnace + cart, then picked up) when player punches them
Chest in Minecart: Can be broken (into chest + cart, then picked up) when player punches them

Minecart: Can be broken if player punches them.
Boat: Can be broken if player punches them.
ItemFrame: Things can be inserted as well as taken out, (not invulnerable) itemframe pops off by player punching or shooting them (e.g. bow, snowballs, egg)
Painting: Pop off if player punches them.
Ender Crystals: blow up when player punches or shoots them.

Living entities: Those which can be leashed as well as unleashed in Survival-, can also in Adventure Mode.
Chicken Eggs: Player in adventure mode can throw eggs and also spawn eventually a chicken by doing so.
Snowballs: Can be thrown, as a result can pop off (not invulnerable) itemframes/paintings.

—

Can not be interacted with in adventure mode:

Repeater
Comparator
Daylight detector
—

Which of the above mentioned blocks should be possible for someone in Adventure mode to be accessible or changeable or breakable, is of course up to Mojang, but it'd be great if map makers could add their opinion as well.