Space key does not open cell editor

[hugoeanogueira]

Description
When using the keyboard to start cell editor, we cannot use the space key to open the cell editor and replace its content with a new space character.
Everything works fine if we type a "normal" character.

Test conditions
OS: Mac OS v10.12.6
Browsers: Chrome 60.0.3112.113 and Firefox 55

How to reproduce

• Open hypergrid's demo app;
• Focus on an editable cell (either with or without content);
• Hit the "space" key (nothing happens -> should have opened the editor);
• Hit the "a" key (a new editor with "a" value type should be rendered).

[joneit]

Resolved by Hypergrid v2.1.11 (PR #722).