Yarn translator cannot handle empty version spec

[max-privatevoid]

No idea if this would even be a valid yarn lockfile. From here:
https://github.com/TryGhost/Admin/blob/b872df2e0eee3ca07c5717a36ef1f5fa0cc97c1d/yarn.lock#L6224

$ nix run github:nix-community/dream2nix -- add github:TryGhost/Admin/b872df2e0eee3ca07c5717a36ef1f5fa0cc97c1d
(...)
Translating project metadata
error: parser failed at:
           ember-get-config ""
           lodash.defaults "^4.2.

       … while evaluating 'mapAttrsToList'

       at /nix/store/ygz58w4f2hgnrdwa657k7gkx3ajd6d8r-bs58z9v8mfd6hxh9zwhsmyzlmiamhqjj-p53cz6rh27q40g9i0q98k3vfrz6lm12w-source/lib/attrsets.nix:258:23:

          257|   */
          258|   mapAttrsToList = f: attrs:
             |                       ^
          259|     map (name: f name attrs.${name}) (attrNames attrs);

       … from call site

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/translators/nodejs/pure/yarn-lock/default.nix:104:11:

          103|         serializePackages = inputData:
          104|           lib.mapAttrsToList
             |           ^
          105|             (yarnName: depAttrs: depAttrs // { inherit yarnName; })

       … while evaluating 'serializePackages'

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/translators/nodejs/pure/yarn-lock/default.nix:103:29:

          102|
          103|         serializePackages = inputData:
             |                             ^
          104|           lib.mapAttrsToList

       … from call site

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/translator.nix:43:32:

           42|
           43|       serializedPackagesList = final.serializePackages final.inputData;
             |                                ^
           44|

       … while evaluating 'findCycles'

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/translator.nix:167:45:

          166|             let
          167|               findCycles = node: prevNodes: cycles:
             |                                             ^
          168|                 let

       … from call site

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/translator.nix:202:17:

          201|               cyclesList =
          202|                 findCycles
             |                 ^
          203|                   (utils.nameVersionPair mainPackageName mainPackageVersion)

       … while evaluating the attribute 'cyclicDependencies'

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/translator.nix:252:20:

          251|
          252|             inherit cyclicDependencies;
             |                    ^
          253|

       … while evaluating 'compressDependencyGraph'

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/dream-lock.nix:183:31:

          182|
          183|     compressDependencyGraph = decompGraph:
             |                               ^
          184|       lib.mapAttrs

       … from call site

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/dream-lock.nix:226:11:

          225|         cyclicDependencies =
          226|           compressDependencyGraph
             |           ^
          227|             uncomp.cyclicDependencies;

       … while evaluating 'toJSON'

       at /nix/store/pp50mg5zjm4if97n27wncqmpbj9x0j3y-49xvflbb44ffsmkjysmrkf0kvk8fmd96-dream2nix-full-src/utils/dream-lock.nix:244:14:

          243|
          244|     toJSON = dreamLock:
             |              ^
          245|       let

       … from call site

       at «string»:8:7:

            7|     in
            8|       dream2nix.utils.dreamLock.toJSON
             |       ^
            9|         # don't use nix to detect cycles, this will be more efficient in python

  Exception

  Translator failed to create dream-lock.json

  at /nix/store/ig5if3b8b7rq70x2z21nvb2k347fdlyj-cli/commands/add.py:476 in run_translate
      472│         )
      473│ 
      474│       # raise error if output wasn't produced
      475│       if not output_temp_file.read():
    → 476│         raise Exception(f"Translator failed to create dream-lock.json")
      477│ 
      478│       # read produced lock file
      479│       with open(output_temp_file.name) as f:
      480│         lock = json.load(f)

[nrdxp]

Not the exact same error, but what I'm getting seems related:

error: value is null while a list was expected

       at /nix/store/wh5ppx82dslh8p6p07qjk7wc227ls8q6-source/src/translators/nodejs/pure/yarn-lock/default.nix:200:35:

          199|                         inherit name;
          200|                         version = b.elemAt versionMatch 0;
             |                                   ^
          201|                       }

The parser seems to have comepletey changed since this time, and the fix in the linked PR no longer exists so perhaps this is a different iteration of a similar issue.