GSF.SortedTreeStore: UnionTreeStreamSortHelper.cs - Major bug fix fou…

…nd by yuwenpeng. This would result in occasional data loss. This data loss would only occur if duplicate records were written to the openHistorian. Every time duplicate records were written, there was a very very minor chance that the duplicate record could cause a rollover operation to end prematurely. If writing duplicate records is commonplace, data loss can occur on a regular basis.

Source/Libraries/GSF.SortedTreeStore/Snap/UnionTreeStreamSortHelper.cs

@@ -114,7 +114,7 @@ public void SortAssumingIncreased(int index)
                 if (!itemToMove.IsValid)
                 {
                     m_validRecords--;
-                    for (int x = 0; x < m_validRecords; x++)
+                    for (int x = index; x < m_validRecords; x++)
                     {
                         Items[x] = Items[x + 1];
                     }