[Branches/1.0] Fixes issue with subsequent readers of shapefiles (.sidx files). Fixes #34445
[Branches/1.0] Fixes issue with subsequent readers of shapefiles (.sidx files). Fixes #34445


git-tfs-id: [https://tfs.codeplex.com/tfs/TFS01]$/SharpMap/Branches/1.0;C104565

nhvu1988/SharpMap,SharpMap/SharpMap,nhvu1988/SharpMap,SharpMap/SharpMap