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java.lang.Integer cannot be cast to scala.collection.IndexedSeq
java.lang.ClassCastException: java.lang.Integer cannot be cast to scala.collection.IndexedSeq	at org.broadinstitute.hail.expr.IndexOp$$anonfun$eval$217.apply(AST.scala:1780)	at org.broadinstitute.hail.expr.AST$$anonfun$evalCompose$2.apply(AST.scala:128)	at org.broadinstitute.hail.expr.Parser$$anonfun$5$$anonfun$apply$7.apply(Parser.scala:168)	at org.broadinstitute.hail.expr.Parser$$anonfun$5$$anonfun$apply$7.apply(Parser.scala:168)	at org.broadinstitute.hail.driver.AnnotateVariantsExpr$$anonfun$2$$anonfun$apply$2.apply(AnnotateVariantsExpr.scala:71)	at org.broadinstitute.hail.driver.AnnotateVariantsExpr$$anonfun$2$$anonfun$apply$2.apply(AnnotateVariantsExpr.scala:70)	at scala.collection.IndexedSeqOptimized$class.foldl(IndexedSeqOptimized.scala:51)	at scala.collection.IndexedSeqOptimized$class.foldLeft(IndexedSeqOptimized.scala:60)	at scala.collection.mutable.ArrayOps$ofRef.foldLeft(ArrayOps.scala:108)	at org.broadinstitute.hail.driver.AnnotateVariantsExpr$$anonfun$2.apply(AnnotateVariantsExpr.scala:70)	at org.broadinstitute.hail.driver.AnnotateVariantsExpr$$anonfun$2.apply(AnnotateVariantsExpr.scala:64)	at org.broadinstitute.hail.variant.VariantSampleMatrix$$anonfun$mapAnnotations$1.apply(VariantSampleMatrix.scala:399)	at org.broadinstitute.hail.variant.VariantSampleMatrix$$anonfun$mapAnnotations$1.apply(VariantSampleMatrix.scala:399)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at org.apache.spark.storage.MemoryStore.unrollSafely(MemoryStore.scala:285)	at org.apache.spark.CacheManager.putInBlockManager(CacheManager.scala:171)	at org.apache.spark.CacheManager.getOrCompute(CacheManager.scala:78)	at org.apache.spark.rdd.RDD.iterator(RDD.scala:268)	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)	at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)	at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)	at org.apache.spark.scheduler.Task.run(Task.scala:89)	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)