ci/prepare-artifacts: check if we're about to overwrite ci config/expectations files
We've had this issue in the past and last time it took ~3 weeks for a human to notice; let's have a check instead.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
We've had this issue in the past and last time it took ~3 weeks for a human to notice; let's have a check instead.