jira gets hosed when attempting to attach

A user from my company wants me to file this bug

• • Steps To Reproduce:
    1) attempt to attach
    2) browse to a file which is too big, in my case, a deb.

• • Expected Result:

Either

a) the file should be attached

or

b) the file should not be attached and the field should be empty

• • Actual Result:

the field is filled with the "too big" file name and there's no way to clear it. Attempts to edit that field are treated as though you had hit the "browse" button. command-A will select the field's contents, but neither <del> nor <backspace> will delete it. Your only recourse is to "cancel" and start over which is a nuisance if you've already listed some number of other files.