Hardly anyone knows it happened. The Liberals and Labour were not expecting it. Strange thing is they didn't tell Charles Walker, who chairs the Procedure Committee. He clearly explains that despite many opportunities he has been "played like a fool" by his own government ministers over the issue.
http://www.bbc.co.uk/news/uk-politics-32061097
http://www.bbc.co.uk/news/uk-politics-32066326
http://www.bbc.co.uk/news/uk-politics-32073791
http://www.bbc.co.uk/iplayer/episode/b05qw1nf/house-of-commons-election-of-the-speaker-debate The actual debate
Despite the back hand tactics the government lost the vote, some of their own MPs and those of the Lib-Dems voted against.