Added a comment

Author: Ganyushin, Dmitry

Framework/Kernel/src/Property.cpp

@@ -325,6 +325,9 @@ std::string getUnmangledTypeName(const std::type_info &type) {
   if (mitr != typestrings.end()) {
     return mitr->second;
   }
+  /* if a type name looks like
+  N6Mantid6Kernel16EnumeratedStringINS_12_GLOBAL__N_111BinningModeEXadL_ZNS2_L16binningModeNamesEEEXadL_ZNS0_12_GLOBAL__N_114compareStringsEEEEE
+  we assume it is a EnumeratedStringProperty and return a "string" for it */
   string type_name = type.name();
   if (type_name.find("Mantid") != std::string::npos && type_name.find("EnumeratedString") != std::string::npos) {
     return "string";