Enumerations drop quotes when double quotes are used

https://github.com/kiegroup/kie-wb-common/pull/1890

@Rikkola The issue reported in the JIRA seem to be resolved; however I noticed (given an enumeration defined as Person.name: ['a', '"b, c"', 'd']) that the generated DRL is Person( name == "b, c" ) whereas should it be Person( name == "\"b, c\"" )? Closing and re-opening the decision table keeps the correct values selected in the table. I also tried defining the BRL fragment to use a literal value for the enumeration and this gave the same results (DRL possibly incorrect, but re-opening and editing the column was OK).

I also checked Guided Rules and the DRL is equally wrong however re-opening the rule also led to the wrong enumeration value being selected in the editor (it selected the first option by default) and the DRL showing the same (i.e. I set it to "b, c" and re-opening the file selected a).