ok, the resolution is that it works as intended. The documentation needs to be clarified that it returns a string in cases where the beginning and end are the same date.

https://github.com/quasarframework/quasar/issues/8037

The problem comes when the range is a single day. That is same date is selected for both start and end.
In that case it returns a string instead of an object.

I’m using q-date range and it works fine if the from and to are different.
However, if I select the start date and then click again for the final to date,
it returns a string instead of an object. Is this a bug?
If not it should be clearly documented.

I can confirm that the change removes the warning in dev mode.
However, a quasar build still generates an error:

WARNING in asset size limit: The following asset(s) exceed the recommended size limit (250 kB).
This can impact web performance.
Assets:
js/vendor.js (525 kB)

WARNING in entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (250 kB). This can impact web performance.
Entrypoints:
app (776 kB)
js/manifest.js
js/vendor.js
js/app.js
app.b7367fbcd48a0120344950ee4608e950.css

Working on my first project but I’ve started to receive this warning.
I don’t feel that the project is that big yet. Is there a way to remove
this warning?