add a FIXME to LodQuadTree for worldGen in worlds without DH data

core/src/main/java/com/seibel/lod/core/render/LodQuadTree.java

@@ -181,6 +181,8 @@ public class LodQuadTree extends QuadTree<LodRenderSection> implements AutoClose
 					boolean childSectionLoaded = this.recursivelyUpdateRenderSectionNode(playerPos, rootNode, childNode, childPos, parentRenderSectionIsEnabled);
 					allChildrenSectionsAreLoaded = childSectionLoaded && allChildrenSectionsAreLoaded;
 				}
+				// FIXME having world generation enabled in a pre-generated world that doesn't have any DH data can cause this to happen
+				//  surprisingly reloadPos() doesn't appear to be the culprit, maybe there is an issue with reloading/changing the full data source?
 				LodUtil.assertTrue(allChildrenSectionsAreLoaded, "Potential QuadTree concurrency issue. All child sections should be enabled and ready to render.");