export collections separated with comma and space, and without LaTeX escape codes

[rdiaz02]

What I'd like

In the BibTex and BibLaTeX exporters, have the collections for an entry separated with a comma and a space (", ") and without LaTeX escape codes (e.g., no \_ for _).

Details of what I've tried

I can get the collections using "Include JabRef-specific metadata" with either JabRef 4 or JabRef 5, and the collections are in field "groups". However, when an entry is in multiple collections, the collections are separated by a comma (","), and I'd like to separate them with a comma and a space (", ").

Using this #1642 (comment)

or

#1845 (comment)

or

#2118 (comment)

as examples, I have added, to the postscript either this

if (Translator.BetterTeX) {
   if (item.collections) reference.add({ name: 'coll', value: item.collections.filter(coll => Translator.collections[coll]).map(coll => Translator.collections[coll].name), sep: ', '});
 }

or

if (Translator.BetterTeX) {
reference.add({ name: 'collections', value: item.collections.map(key => Translator.collections[key] && Translator.collections[key].name).filter(name => name), sep: ', ' })
}

That works, creating a "coll" (or a "collections") field. BUT I get LaTeX escape characters (in particular, I have collections named as A_B which end up as A\_B). I've tried using ".replace" (and using a regex) in several places of the above expressions but I am not JS-able, and I think I am not doing it correctly. I've also tried passing different values of "enc" (https://retorque.re/zotero-better-bibtex/exporting/scripting/index.html) but again I think I don't know what I am doing.