System Information
Operating system: Windows 10
Graphics card: RTX 2070SU

Blender Version
Broken: v2.83.0 and 2.90 (2020-06-06 00:05) rBa39cc5ae4da2
Worked: v2.82.7

Short description of error
Baking keyframes is not working

Exact steps for others to reproduce the error

1. Open a video in the movie clip editor and add tracking markers to it and track the scene.
2. Solve the track by selecting Solve from the toolbar on the left of the movie clip editor and pressing the Solve camera motion button.
3. Apply the solved camera motion to the scene camera by selecting Setup tracking scene in the Solve -> Scene setup tab on the left of the movie clip editor.
4. Select the camera in the 3D viewport and in the Constraints tab of the Properties editor select Constrain to F-Curve and a error message should pop up.

Traceback (most recent call last):
  File "/media/Alaska/HDD/Home/Documents/Blender Versions/blender-2.83.0-linux64/2.83/scripts/startup/bl_operators/clip.py", line 546, in execute
    self._bake_object(scene, ob)
  File "/media/Alaska/HDD/Home/Documents/Blender Versions/blender-2.83.0-linux64/2.83/scripts/startup/bl_operators/clip.py", line 489, in _bake_object
    if con.object:
AttributeError: 'CameraSolverConstraint' object has no attribute 'object'

Here's a .blend file with steps 1-3 complete.

Original steps: