TickIT doesn't use the Archive class

I try to setup a nodelist handler for amiganet, these come in lha format I have added the archiver and it works ok with the files from the library

I test on tickit.cfg with both nodelist_handler and file_handler with same results:

[AMYLIST]
Dir=amn_amylist
SourceAddress=39:943/1@amiganet
ForceReplace=true
Handler=tickit/nodelist_handler.js
HandlerArg={"domain":"amiganet", "match":"AmyList.l*", "nlmatch":"AmyList.*"}
;Handler = tickit/file_handler.js
;HandlerArg = { "match": "AmyList.l*", "files": [{ "source": "Amylist.*", "destination": "/sbbs/fido/NODELIST.AMIGANET" }]}

it seems that the part of code that tries to detect the archiver is not working for this case

        Object.keys(ctx.sbbsecho.packer).forEach(function(key) {
                var i;
                var sig = '';

                f.position = ctx.sbbsecho.packer[key].offset;
                for (i=0; i<ctx.sbbsecho.packer[key].sig.length; i+=2) {
                        sig += format("%02X", f.readBin(1));
                        if (f.eof)
                                break;
                }
                if (sig === ctx.sbbsecho.packer[key].sig)
                        unpack = ctx.sbbsecho.packer[key].unpack;
        });
        f.close();

        if (unpack == undefined) {
                log(LOG_DEBUG, "Unable to identify packer for '"+tic.file+"'");
                return false;
        }

I attach a AmyList.l48 nodelist example that came from my boss.

AmyList.l48