FriendsOfCADability
diff --git a/‎CADability/SphericalSurface.cs‎
Lines changed: 1 addition & 1 deletion b/‎CADability/SphericalSurface.cs‎
Lines changed: 1 addition & 1 deletion
@@ -516,7 +516,7 @@ public override void GetZMinMax(Projection p, double umin, double umax, double v
 		/// <returns></returns>
 		public override ISurface Clone()
 		{
-			return new SphericalSurface(toSphere);
+			return new SphericalSurface(toSphere, usedArea);
 		}
 		/// <summary>
 		/// Overrides <see cref="CADability.GeoObject.ISurfaceImpl.Modify (ModOp)"/>
Original file line number	Diff line number	Diff line change
`@@ -516,7 +516,7 @@ public override void GetZMinMax(Projection p, double umin, double umax, double v`
`516`	`516`	`/// <returns></returns>`
`517`	`517`	`public override ISurface Clone()`
`518`	`518`	`{`
`519`		`- return new SphericalSurface(toSphere);`
	`519`	`+ return new SphericalSurface(toSphere, usedArea);`
`520`	`520`	`}`
`521`	`521`	`/// <summary>`
`522`	`522`	`/// Overrides <see cref="CADability.GeoObject.ISurfaceImpl.Modify (ModOp)"/>`