Keyword set up to follow default AdGroup bid doesn't sync up in AdMAX(MSN/bing seupdate issue)

If a keyword is set up to follow default adgroup bid then MSN/Bing sync doesn't sync up that keyword after seupdate is run

Steps to reproduce

1. In Adcenter go to AdGroups of one of test account
2. Try to add few keywords and do not add any bid amount. This way they will pick default Ad group bid and will appear as not bold in the later view
3. Try runnign seupdate sync to sync these newly added keywords . They won't be synced or added.

The reason is newly added keywords with AdGroup default bid (which show as not bold in AdCenter UI) returns XML response as below

<Keyword>
<BroadMatchBid>
<Amount i:nil="true"/>
</BroadMatchBid>
<CashBackInfo i:nil="true"/>
<ContentMatchBid i:nil="true"/>
<EditorialStatus>Active</EditorialStatus>
<ExactMatchBid i:nil="true"/>
<Id>20097161879</Id>
<NegativeKeywords xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays"/>
<OverridePriority i:nil="true"/>
<Param1/>
<Param2/>
<Param3/>
<PhraseMatchBid i:nil="true"/>
<Status>Active</Status>
<Text>mars vacation</Text>
</Keyword>

In above case "mars vacation" is a broad match keyword and its bid is set as default as its AdGroup but just not returned in SOAP response.

To fix this seupdate logic needs to be altered to look into Ad Group default bid for handling such keywords.