uni-39246: fix exception in specific case

If there were more things to destroy than options to choose we threw an
exception, because apparently an array changed its indexing type during
development. Fixed by setting the array bounds correctly.

Author: numerobis

Assets/FbxExporters/Editor/ManualUpdateEditorWindow.cs

@@ -33,9 +33,9 @@ public void Init(FbxPrefabAutoUpdater.FbxPrefabUtility fbxPrefabUtility, FbxPref
         m_nodeNameToSuggest.AddRange(m_nodesToCreate);
         m_nodeNameToSuggest.AddRange(m_nodesToRename);
 
-        // Add extra 1 for the [Delete] option
-        selectedNodesToDestroy = new int[m_nodeNameToSuggest.Count + 1];
-        selectedNodesToRename = new int[m_nodeNameToSuggest.Count + 1];
+        // Keep track of the selected combo option in each type
+        selectedNodesToDestroy = new int[m_nodesToDestroy.Count];
+        selectedNodesToRename = new int[m_nodesToRename.Count];
 
         // Default option for nodes to rename. Shows the current name mapping
         for (int i = 0; i < m_nodesToRename.Count; i++)