Theme Import: Themes without a valid state can be imported

Issue Summary

The import functionality allows themes to be imported even if the state is invalid (i.e. not one of the 3 available state values below).

As a result, the themes are imported with an empty/null State.

Steps to Reproduce

1. Download the Import template
2. Open the excel file created
3. Go to the Themes sheet
4. Fill in the Mandatory columns with the following:

   Title*	State*	Active*
   FxThemePrg5	1 - Not Started	Yes
   FxThemePrg4	1	Yes

   Notice the second row has a state value outside of the valid list.

5. Browse to the Themes Grid
6. Click the More Actions button, and select the Import Themes action.

Expected Results

Import data should be validated with an error displayed to the user and/or the import prevented so the data can be corrected instead of creating a theme with an invalid state (i.e. NULL).

Actual Results

The theme is created with an incorrect state value (set to NULL).

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available.
On the other hand, make sure, before you import, that the data in the MS Excel file is correct, and click on the View Info link to verify if the import info does contain any invalid values (shown in red).