No possible to set the default value of cpptango property to the empty string

In previous version of pogo one could set the default value of cpptango server property to the empty string puting "" in Default value widget. In the current version e.g. 9.9.1 or 9.10.5 if you set it to "" you get the default value with string "" (instead of empty string). On the other hand if you leave it empty the default value is not set. So currently it is not possible to set default property value to the empty string (or I miss something), i.e. one has to do it by hand but it will be overwritten by next pogo regeneration of source files.

In the current version pogo generates code

       prop_def  = "\"\"";
       vect_data.clear();
       vect_data.push_back("\"\"");

i.e. set default value to "" while in the previous version it was

       prop_def  = """";
       vect_data.clear();
       vect_data.push_back("""");

where """" is equivalent to "" so it sets the empty string.

In the current version if we do not set the default value the push_back(...) call is missing so the default value is not set