Worng subunit_to_unit for HUF currency

[svilensiderov]

Hi,

I found a problem with subunit_to_unit for HUF currency. Exponent is 2 so it should be 100.

[ct-clearhaus]

Please notice #742 🙂

[antstorm]

@svilensiderov as @ct-clearhaus has pointed out these are not easily fixable because people will already have these stored with incorrect exponents. Luckily you can re-register the currency in your project fixing the issue