Merge branch 'master' of https://github.com/boltdb/bolt into fix-deletion

Conflicts:
	node.go

1 files changed, 1 insertions, 0 deletions

diff --git a/bucket.go b/bucket.go
index 37dba0f..43204f7 100644
--- a/bucket.go
+++ b/bucket.go
@@ -476,6 +476,7 @@ func (b *Bucket) spill() error {
 	b.rootNode = b.rootNode.root()
 
 	// Update the root node for this bucket.
+	_assert(b.rootNode.pgid < b.tx.meta.pgid, "pgid (%d) above high water mark (%d)", b.rootNode.pgid, b.tx.meta.pgid)
 	b.root = b.rootNode.pgid
 
 	return nil