From a9959498c539c6e63c15040132c574db99a53a5f Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Sat, 16 Feb 2019 23:28:29 +0100
Subject: [PATCH] Overwrite on insert

---
 src/blobsets.nim | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/blobsets.nim b/src/blobsets.nim
index 077d2d2..fec0214 100644
--- a/src/blobsets.nim
+++ b/src/blobsets.nim
@@ -315,12 +315,12 @@ func insert(trie, l: BlobSet; depth: int): BlobSet =
       raiseAssert("cannot insert into cold node")
     of leafNode:
       if result.table[i].key == l.key:
-        raise newException(KeyError, "key collision in blob set")
-      var subtrie = newBlobSet()
-      subtrie = subtrie.insert(result.table[i], depth)
-      subtrie = subtrie.insert(l, depth)
-      result.table[i] = subtrie
-      assert(result.table[i].kind == hotNode)
+        result.table[i] = l
+      else:
+        var subtrie = newBlobSet()
+        subtrie = subtrie.insert(result.table[i], depth)
+        subtrie = subtrie.insert(l, depth)
+        result.table[i] = subtrie
   else:
     result.bitmap = result.bitmap or (1'u64 shl key.sparseIndex)
     result.table.insert(l, result.compactIndex(key))