Trying to build a package just now failed (https://koji.fedoraproject.org/koji/taskinfo?taskID=45145531):
Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction error: lua script failed: [string "%prein(crypto-policies-20200527-3.gitb234a47.fc33.noarch)"]:19: attempt to call a nil value
Error in PREIN scriptlet in rpm package crypto-policies error: crypto-policies-20200527-3.gitb234a47.fc33.noarch: install failed