Synchronize with two-way replica fails : Table already exists

I have an SDE geodatabase which has all versioned data.

I created a geodata service from this geodatabase.

I then created a two-way replica from server into another SDE geodatabase using the geodata service.

When I make an edit on the child replica and try to synchronize it back, I get this error:

Attachment 22840

Sychronize Replica Failed
Table already exists

What is this even talking about?

I'm using ArcGIS Desktop 10.1, ArcGIS for Server 10.1, SQL 2012 and I have the 2008 R2 Native client.

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