Motions are indeed confidential when they are sent to me and before they are proposed at committee by the member, and I will not distribute them to the media or the public domain. I will distribute them only to the members of the committee.
However, it has happened on every side that members give notice of a motion by verbally stating it and reading it out loud during committee proceedings. Mr. Chambers did it for this motion, and it's happened many times in the past and in other committees as well.
As soon as a motion is read into testimony, it becomes public, and I am then free to send it out to the media and the public, to whoever wants to have it. It's also in the minutes of proceedings at that time.