 which temporarily prevented blocked draw logic: by default, <code>m.request</code> would lock the draw loop on execution and unlock when all pending requests had resolved - the same behaviour could be invoked manually using <code>m.startComputation()</code> and <code>m.endComputation()</code>. The latter APIs and the associated behaviour has been removed in v1.x. Redraw locking can lead to buggy UIs: the concerns of one part of the application should not be allowed to prevent other parts of the view from u