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fix:add keypath to shadow set when map empty #1740

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fix:add keypath to shadow set when map empty #1740

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4 changes: 4 additions & 0 deletions viper.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2097,6 +2097,10 @@ func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]any, pre
if shadow == nil {
shadow = make(map[string]bool)
}
if len(m) == 0 && prefix != ""{
shadow[strings.ToLower(prefix)]=true
return shadow
}

var m2 map[string]any
if prefix != "" {
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