Your package python-recommonmark failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17786983 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1253872 [details] build.log
Created attachment 1253873 [details] root.log
Created attachment 1253874 [details] state.log
jujens's python-recommonmark-0.4.0-11.gitdbed1c4.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=861021
Fixed.