Space followed by space in RT editor

Scenario: User types some text then presses "Space" 2 times consecutively.
The second time, the space is not properly handled (it's locator in fact) because browsers want to be smart and might insert some tags thus de-synching the DOM with the tree model.

In case of an "insert" char operation, we don't synch DOM with the custom tree model, because we assumed that it is done automatically, which is true in the 99% of cases.
Workaround: Either synch DOM on each "insert" operation, either synch DOM iff inserted char is "Space".