check version<0 in deleteVersion (#348)

cosmos · Dec 14, 2020 · b3b6e2a · b3b6e2a
1 parent a07986e
commit b3b6e2a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mutable_tree.go b/mutable_tree.go
@@ -516,7 +516,7 @@ func (tree *MutableTree) SaveVersion() ([]byte, int64, error) {
 }
 
 func (tree *MutableTree) deleteVersion(version int64) error {
-	if version == 0 {
+	if version <= 0 {
 		return errors.New("version must be greater than 0")
 	}
 	if version == tree.version {