Migration of Advanced URL duplicates Quick links

Migration of Advanced URL duplicates Quick links.
The migration script when run for an account that has quick links, duplicate links are added both in YJ Promotional Ad and DB.
No errors seen in the log run.

Quick links created wheile deployment are:
about us
contact us

Duplication screen shot attached for YJ Promotional Ad.
Log file attached.

json value from yjp.campaigns for one of the SECampaigns where I see duplicate site links.

{"campaign":

{"name":"a278_150915_401014_2925_GT","searchEngineId":1259873,"status":"PAUSED","budgetAmount":100,"startDate":"20160810","endDate":null}

,"callExtensions":null,"quickLinks":[

{"linkText":"about us","linkURL":"http://www.merchantsite.com/aboutus","placeholderType":"QUICKLINK","id":8391597}

,

{"linkText":"contact us","linkURL":"http://www.merchantsite.com/contactus","placeholderType":"QUICKLINK","id":8391596}

,

{"linkText":"about us","linkURL":"http://www.merchantsite.com/aboutus","placeholderType":"QUICKLINK","id":8391595}

,

{"linkText":"contact us","linkURL":"http://www.merchantsite.com/contactus","placeholderType":"QUICKLINK","id":8391594}

,

{"linkText":"about us","linkURL":"http://www.merchantsite.com/aboutus","placeholderType":"QUICKLINK","id":8391593}

,

{"linkText":"contact us","linkURL":"http://www.merchantsite.com/contactus","placeholderType":"QUICKLINK","id":8391592}

,

{"linkText":"about us","linkURL":"http://www.merchantsite.com/aboutus","placeholderType":"QUICKLINK","id":8391591}

,

{"linkText":"contact us","linkURL":"http://www.merchantsite.com/contactus","placeholderType":"QUICKLINK","id":8391590}

],

Expected: No duplication of Quick Links