I have been entering bank interest into my savings account from the statement. The form prepopulates date but when I go from say 30/09/2015 it changes 31 back to 30 but I am trying to enter 31/10/2015 which is a valid date.

Reproducible: Always

Steps to Reproduce:
1. Enter a transaction into Transaction Input Form dated 30/09/2015
2. Enter 31 into the date field and note that it is changed back to 30.


Expected Results:  
Validation for days in month below 30 should not be done until day and month entered or prepopulated date data confirmed.

I use dd/mm/yyyy format.