olac_grabber does not allow downloads with more than one xml per wav

Created by: maxime-fily

the command python olac_grabber.py --metadata "/home/mfily/Documents/diagnoSTIC_XP/03_make_corpus/metadata_pangloss.xml" --languages "Lataddi Narua" exits in error ("pandas.errors.MergeError: Merge keys are not unique in right dataset; not a one-to-one merge"). I suspect that this is due to multiple xml files for one wav. Can't it download all xmls attached to one wav file ?