Packagist not updating for deletions

Looks like Packagist isn't picking up branch deletions today?

Under webhooks in GitHub I can see several deliveries were made today - for example:


I've made numerous changes to [this repo](https://github.com/kodus/session) today, of which adding tags did correctly generate new versions in Packagist - but several branch removals (all of which show webhook deliveries being made) did not.

I've marked with green here additions I made today, and removals in red:


I'll wait before I manually update, in case you want to investigate the data/logs. (Please let me know if I can safely do the manual update?)