"Manage Credits" screen accepts invalid input

[bossman]

When in Admin on the client summary page there is the "Manage Credits" link.

 

When you add a value of "20.00CAN" instead of "20.00" in the amount field, the system accepts the input but does not apply a credit. It does not appear that you can correct this so you must delete the credit and create a new one to fix it.

 

Using V 4.21