Create a list of differences where the value in wikidata and the value in the ODZ master are different, so that the differences can be reviewed manually.
in the case that community edits might be of higher quality than the ODZ master, prepare a list of suggested changes to the owner of the ODZ dataset (probably needs some human judgement/manual work)
if the community edit in wikidata is wrong, delete the wikdata entry so it can be properly imported from the ODZ master