This entire code block is the source of a large conflict where someone added a new ctor for this class. It looks like the conflict resolution in github is confused though because that ctor only has three calls in it:

        protected RenderTarget2D(GraphicsDevice graphicsDevice,
                        int width,
                        int height,
                        bool mipMap,
                        SurfaceFormat format,
                        DepthFormat depthFormat,
                        int preferredMultiSampleCount,
                        RenderTargetUsage usage,
                        SurfaceType surfaceType)
            : base(graphicsDevice, width, height, mipMap, format, surfaceType)
        {
            DepthStencilFormat = depthFormat;
            MultiSampleCount = preferredMultiSampleCount;
            RenderTargetUsage = usage;

Not sure what to do with this one.