Restore original Clone() type conversion behavvior. (#66)

Author: cmacknz

CHANGELOG.md

@@ -14,6 +14,12 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+## [0.2.9]
+
+### Changed
+
+- Fix breaking change to mapstr type conversions during Clone(). #66
+
 ## [0.2.8]
 
 ### Changed

mapstr/mapstr.go

@@ -155,7 +155,7 @@ func (m M) Clone() M {
 	result := make(M, len(m))
 
 	for k := range m {
-		if innerMap, ok := (m[k]).(M); ok {
+		if innerMap, ok := tryToMapStr(m[k]); ok {
 			result[k] = innerMap.Clone()
 		} else {
 			result[k] = m[k]