Right-shift issue on edit with Firefox

Reproduced on http://ui-grid.info/docs/#/tutorial/205_row_editable with Firefox 36.0.1. Works normally with Chrome or IE.

Condition : editable grid with cellNav enabled, just like in row edit example.

Use Right-Shift to enter edit (to start with Capital or type numbers on french keyboard), then shift remains toggled, meaning that a TAB will move left, mouse click in another cell will "text select" the range, etc. Have to press Left-Shift to exit the error condition.

There is no problem when use Left-Shift to edit and I only reproduced on Firefox.

Example bellow : clicked on second column row 3, typed Right-Shift, wrote "edit", then clicked on the cell on the 7th row.