Moving a camera while editing a keyframe causes edits to camera’s non-keyframe position
Stamp a camera gadget and a keyframe.
Scope into the keyframe, then scope into the camera to keyframe its position.
Reposition the camera in first person.
Use the exit button at the top right to stop editing the camera, then the stop recording button at the right to stop editing the keyframe.
Delete the keyframe, and note that the camera’s position has changed, even though we only edited the camera while keyframe mode was active.