I'm running https://gerrit.wikimedia.org/r/#/c/207739/ from the /vagrant/mediawiki-fr directory, as follows:
MW_INSTALL_PATH=/vagrant/mediawiki-fr php extensions/DonationInterface/globalcollect_gateway/scripts/orphans.php --globals
The globals dump has $wgDonationInterfaceOrphanCron => (null?), which is strange because the variable is defined in two places, settings.d/wikis/paymentswiki/settings.d/puppet-managed/10-DonationInterface.php where it is set to an array of real values, and extensions/DonationInterface/DonationInterface.php where it is set to an array of default values. How would it end up with no value when running from a maintenance script?