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core: clone MPT node while restoring it multiple times

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We need this to avoid collapse collisions. Example of such collapse
described in
https://github.com/nspcc-dev/neo-go/pull/2019#discussion_r689629704.
This commit is contained in:
Anna Shaleva 2021-08-27 16:58:27 +03:00
parent 5cd78c31af
commit 36808b8904
8 changed files with 138 additions and 1 deletions
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3
pkg/core/mpt/empty.go
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@ -54,3 +54,6 @@ func (e EmptyNode) Type() NodeType {
func (e EmptyNode) Bytes() []byte {
return nil
}
// Clone implements Node interface.
func (EmptyNode) Clone() Node { return EmptyNode{} }