Sync failed: IOException: Amount: "This field is required" (Big numbers in "How Much?" fields are transformed into scientific notation)

I'm using v0.1.0 (from F-droid), I'm experiencing a sync failed problem, there is a toast, the keywords in it are IOException, Amount, "This field is required".

I'm using I Hate Money service (I don't know if other services are also affected), and the problem arise when you create a bill with a big amount in the "How much?" field. I.e, if you use 1234567 there is no problem, but if you increment the number in one digit, like 12345678, after the input, the field is written as 1.2345678E7 (Scientific notation) and I'm thinking that when the sync takes places, the server doesn't understand that notation.

If you can't reproduce the problem, I can provide screenshots or a logcat.