az.summary ignores the parameter coords

[impact27]

Describe the bug
I have a arviz.data.inference_data.InferenceData object with several 'chain'. I want to select some of them. I use:

results_summary = az.summary(trace, coords={"chain": [0, 1, 2]})

But it looks like the coords parameter doesn't do anything.

To Reproduce
Sample a model with

import pymc3 as pm
[...]
with pm.Model():
    [...]
    trace = pm.sample(return_inferencedata=True, chains=8)
results_summary = az.summary(trace, coords={"chain": [0, 1, 2]})

Expected behavior
I would expect only the chains 0, 1, 2 to be used for results_summary

Additional context
Versions of arviz and other libraries used, operating system used, and anything else that may be useful.

az.__version__ = '0.11.2'
pm.__version__ = '3.11.2'

On WIndows 10

[ahartikainen]

Until we fix this, for now I think .sel methods could be used to select the chains and then you can call summary.

[OriolAbril]

It's already fixed in main branch. Was fixed by #1201 iirc