Cannot enter 0 in the amount field on Mac OS X / Hungarian

[rhornig]

We have an issue where we cannot enter the 0 number in the amount fields on MAC OS X if the kayboard layout is set to Hungarian.

The reason seems to be that the amount field filters for keystrokes and allows only entering numbers. On MAC OS that javascript code seems to be checking for the physical keycodes of the keys 0-9 (on the top row of the keyboard). On a hungarian keyboard, the 0 is placed in the upper left corner of the keyboard while the key right to 9 (i.e. where the 0 is on a US keyboard) is producing the ö character.

I can verify that it's possible to enter the 1 2 3 4 5 6 7 8 9 ö characters if I'm using the Hungarian layout.

This happens only on MAC OS with Hungarian layout, on all browsers (safari and chrome tested)