fix: don't require WEOrigin / WEOffset in MCEdit schematics

worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/MCEditSchematicReader.java

@@ -57,6 +57,7 @@ import java.io.UncheckedIOException;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
+import java.util.NoSuchElementException;
 import java.util.Set;
 
 /**
@@ -126,6 +127,7 @@ public class MCEditSchematicReader extends NBTSchematicReader {
         short height = schematicTag.getTag("Height", LinTagType.shortTag()).valueAsShort();
         short length = schematicTag.getTag("Length", LinTagType.shortTag()).valueAsShort();
 
+        try {
             int originX = schematicTag.getTag("WEOriginX", LinTagType.intTag()).valueAsInt();
             int originY = schematicTag.getTag("WEOriginY", LinTagType.intTag()).valueAsInt();
             int originZ = schematicTag.getTag("WEOriginZ", LinTagType.intTag()).valueAsInt();
@@ -138,6 +140,12 @@ public class MCEditSchematicReader extends NBTSchematicReader {
 
             origin = min.subtract(offset);
             region = new CuboidRegion(min, min.add(width, height, length).subtract(BlockVector3.ONE));
+        } catch (NoSuchElementException e) {
+            origin = BlockVector3.ZERO;
+            region = new CuboidRegion(origin, origin.add(width, height, length).subtract(BlockVector3.ONE));
+        }
+
+
 
         // ====================================================================
         // Blocks