[3.0.0017] Cancelling the process of importing author file is not resetting back to old values

[pvallabhaneni]

Environment:
System OS: Win 7 64bit and Win 8.1

Steps to Reproduce:

1. Complete Signing Registration.

1. Go to Options->signing Page.
2. Click "Import..." and select the file to be imported.
3. Enter the Password in "Password Request" dialog.
4. Click "Cancel"

Actual Result: Old Author name is lost when importing is cancelled.

Expected Result: All the old values have to be restored, when importing is cancelled.

[pvallabhaneni]

After the above specified steps, Click "Details" button is pressed and enter correct password and close "Certificate Details" dialog. Author name is restored back in options dialog.