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-rw-r--r--mrblib/hash.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/mrblib/hash.rb b/mrblib/hash.rb
index 978fb367b..539efcdf3 100644
--- a/mrblib/hash.rb
+++ b/mrblib/hash.rb
@@ -156,6 +156,7 @@ class Hash
# ISO 15.2.13.4.23
def replace(hash)
self.clear
+ hash = hash.to_hash
hash.each_key{|k|
self[k] = hash[k]
}