Also charcoal apparently doesn't work as fuel anymore. (Creating a fuel item tag might be a good idea?)
I got a bit confused that MC-32296 got marked as a duplicate of this one.
After reading the comments I understood, that they are just different manifestations of the same issue.
Still I would like to suggest changing the description of this issue to contain a short notice about 1-tick unpowering of repeaters being affected too.
affects 18w16a