BIDS filters file only accepts lowercase for modality-wise dictionaries (e.g., T1w -> t1w)

[oesteban]

What happened?

This error replicates nipreps/mriqc#1331 (resolved by #1332).

What command did you use?

fmriprep

What version of fMRIPrep are you running?

master

How are you running fMRIPrep?

Local installation ("bare-metal")

Is your data BIDS valid?

Yes

Are you reusing any previously computed results?

No

Please copy and paste any relevant log output.

An obscure KeyError

Additional information / screenshots

No response