Create MRE for rechunking failure

[jbusecke]

Just a separate issue to track this.

• Make a MRE for this bug and submit an issue about this.

I was able to reproduce the failure above for both iids used when I set the target_chunks={..., 'bnds':1} (tested with multiple values for the other dims). If I set target_chunks={..., 'bnds':2} I have so far not observed a single failure. I have traced back most failures with the dynamic chunking to this pattern too, and thus conclude this is not an issue with the dynamic chunking, but instead reveals some issues further upstream. My hint from above about the dimension having coordinates/no coordinates seemed to have been a wrong lead too. There is something is still going wrong with the rechunking if the dataset has dimensions on coordinates which are not present on the data_variable.

Originally posted by @jbusecke in #4 (comment)

[jbusecke]

I think this is being tackled in pangeo-forge/pangeo-forge-recipes#520

[cisaacstern]

Yes and also the linked pangeo-forge/pangeo-forge-recipes#658

[jbusecke]

I think this was solved in #95.