Broken: version: 2.80rc1
Short description of error
In Dope Sheet you can't see the changebles values of "Object Transforms" unless you go to "Shape Key Editor" and go back.
Exact steps for others to reproduce the error
1 - Open blender, change to "Animation" workspace
2 - Insert any key frame to the cube.
3- Expand the "Object Transforms" (with that little triangle). Note there's no values in the line of keyframe.
4 - Change from "Dope Sheet" to "Shape Key Editor" and go back to "Dope Sheet". Now you will see the values of the keyframes (about the transform you did).
You can't see those numbers without changing the mode.