transform-pouch breaks Design Documents in PouchDB > 6.1.1

[djungowski]

As of PouchDB 6.1.1, transform-pouch breaks the indexing of design documents and a direct query on a view does not return any result where it should. It does not even do something, it's enough that it's initialized

How to reproduce (I used PouchDB 6.3.4 and pouch-transform 1.1.3):

const pouchConnection = new PouchDB('some-pouchdb');
const documentId = 'some-id';

pouchConnection.transform({});

pouchConnection.put({
  _id: '_design/some_view',
  views: {
    some_view: {
      map: function(doc) {
        emit(doc.id, doc.value);
      }.toString(),
      reduce: '_sum'
    }
  }
})
  .then(() => pouchConnection.put({_id: documentId, value: 5}))
  .then(() => pouchConnection.query('some_view'))
  .then(docs => console.log(docs.rows.length));

Expected output: 1
Actual output: 0

If you remove the line pouchConnection.transform({}); everything works fine. PouchDB 6.1.0 is the last version, transform-pouch works with without any errors.

[djungowski]

Btw. It makes no difference, if the View has a reduce function or not, the result is the same.

[djungowski]

One more thing: If you run pouchConnection.query('some_view')).then(docs => console.log(docs.rows.length)) a few seconds later manually, you also get the expected output 1