rdblue commented on code in PR #4926:
URL: https://github.com/apache/iceberg/pull/4926#discussion_r934047817


##########
core/src/main/java/org/apache/iceberg/SnapshotProducer.java:
##########
@@ -167,8 +200,7 @@ protected void validate(TableMetadata currentMetadata) {
   @Override
   public Snapshot apply() {
     refresh();
-    Long parentSnapshotId = base.currentSnapshot() != null ?
-        base.currentSnapshot().snapshotId() : null;
+    Long parentSnapshotId = base.ref(targetBranch) != null ? 
base.ref(targetBranch).snapshotId() : null;

Review Comment:
   This should be the existing branch state, the current snapshot (if creating 
the branch), or null.



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