Limit constraints are a bit weird

youtu.be/aKjzwHjxXOk

I'm not sure if this is a feature or a bugg.

All of the limit constraints only limit the bone but don't fix the actual curve as you can see at the start of the video. Around the 0:55 point in the video you can see how the bone stops but the value keeps on going on as I "move" the bone.

If it were up to me I would make it so that the constraint would also add a limit modifier in the graph editor.