Issue: User receives "Please enter unique field names" error when he tries to create two new fields for the Web Form, even though the two fields have unique names. And after this error occurs, both fields then reflect the same name.
Steps to Reproduce:
1. Add the Web Forms Portlet to a Page
2. Select the Configuration Cog > Configuration on the Portlet
3. Add two new text fields in the Portlet by hitting the '+' sign. Name them Test 1 and Test 2
4. Select Save
Expected Result: The two fields would save and be titled Test 1 and Test 2
Actual Result: Receive a "Please enter unique field names" error in the GUI, and notice that both fields are now named Test 1. It is only after receiving this error that you can edit the second field to be named Test 2 and not receive this behavior.
Tested in 6.2.x and Trunk
Reproduced in 6.2.x and Trunk
trunk commit ce9ee079ca73b56d7047d2dc477c8c2f09ef0c0e
trunk plugins commit 8366e5bff4b1c04bb47f2d352afddbb4b0a535c5
6.2.x commit 557530f5343804c002b22aae6acb01b437b748a4
6.2.x plugins commit 8366e5bff4b1c04bb47f2d352afddbb4b0a535c5