SPIGOT-4405: Chunk generation problem

nms-patches/Chunk.patch

@@ -278,7 +278,7 @@
                      TileEntity tileentity;
  
                      if ("DUMMY".equals(nbttagcompound.getString("id"))) {
-@@ -1101,15 +1221,43 @@
+@@ -1101,6 +1221,8 @@
                      } else {
                          Chunk.d.warn("Tried to load a block entity for block {} but failed at location {}", this.getType(blockposition1), blockposition1);
                      }
@@ -287,10 +287,7 @@
                  }
              }
  
--            this.h.clear();
+@@ -1110,6 +1232,32 @@
-+            com.google.common.base.Preconditions.checkState(this.h.isEmpty(), "Pending tiles not empty"); // CraftBukkit
-             this.a(ChunkStatus.POSTPROCESSED);
-             this.m.a(this);
          }
      }