I am trying to create a List in Sharepoint 2010 using Site Columns and Content Types. It results in creating duplicate fields in the list for the Site Columns used. Here is the details description of what I was doing.
I have created two site columns
<Field Type="Number" DisplayName="Start Coordinate" Required="TRUE" EnforceUniqueValues="FALSE" Indexed="FALSE"
Group="QMS" ID="{A3F2D108-11B5-4B49-9633-338D27227E12}"
Name="StartCoordinate" Overwrite="TRUE" />
<Field Type="Number" DisplayName="End Coordinate" Required="TRUE" EnforceUniqueValues="FALSE" Indexed="FALSE"
Group="QMS" ID="{06B927BB-C354-4A0A-AE88-9C14E55EAB27}"
Name="EndCoordinate" Overwrite="TRUE" />
Then added these to a new content type I
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