Inserting key in animation adds tracks for unselected nodes

[SaffronStreams]

I'm using Godot 3.2.beta2.

I'm doing an animation, and I want to add keys, however, when I do so, extra tracks get added for nodes that are no longer selected. Note: I have three different animationplayers, each with a different set of nodes to animate.

I see there are a lot of issues logged for AnimationPlayer, but did not seem to find this issue.

In the image below, I have moved the handbonenode, using IKchain this means I need to key three bone nodes, but for some reason belly and back bone nodes also get added, even though they are not selected.

[SaffronStreams]

I've tried looking for the cause. I've noticed that this now also happens when I open this project in 3.1, when I select children of belly, or back they both get selected along.

[SaffronStreams]

I seem to have identified the steps. I had made an IK chain with belly->back->head bones. The Head bone is at the same level as left arm and right arm bones. I think it made keys for the two parent bones because they were included in an adjacent? IK chain.

Somehow I had not yet noticed that selecting a child in an IK chain also makes keys for the parents. I don't know if this is a setting I triggered by accident or really haven't noticed yet because it wasn't a problem before. I just started experimenting with belly->back ik chains, so I don't know if this is really a problem for standard characters.

I could however imagine a monster with tentacles or something where it might make animating more difficult than needed, so being able to turn this off (adding keys for parents of a bone node that's part of an IK chain) seems like a good idea.

[KoBeWi]

Can anyone still reproduce this bug in Godot 3.2.3 or any later release?

If yes, please ensure that an up-to-date Minimal Reproduction Project (MRP) is included in this report (a MRP is a zipped Godot project with the minimal elements necessary to reliably trigger the bug). You can upload ZIP files in an issue comment with a drag and drop.