Symptom:
MMM Config WUI: Default Source/Service parameter doesn't have 'None' opn

Conditions:
MMM Config WUI: Default Source/Service parameter doesn't have 'None' option

Steps:
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1. Navigate to EC -> System Provisioning -> MMM Config -> Select any one of the configuration file.
2. Select any one of the configuration and click Edit. 
3. Look into the drop down for the parameter "Default Source/ Default Service" 
P.s. This parameter will appear as Default Service / Default Source based on 'Non SAM EAS Force tune' feature.

Expected:
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The box does n't have 'None' or '-Select-' option and it is by default showing the top entry.

Actual:
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1. If Default  Source / Service is not assigned then the option 'None/ -Select' should be shown.
2. Also if the user select "Force Tune" as Default Source / Service but source / service is not selected then a popup  message needs to be thrown to select a service / source.