$ git clone -n https://src.fedoraproject.org/rpms/python-scikit-learn.git /var/lib/mock/f29-build-920-408/root/thebuilddir/tmp/scmroot/python-scikit-learn
Cloning into '/var/lib/mock/f29-build-920-408/root/thebuilddir/tmp/scmroot/python-scikit-learn'...
$ git reset --hard 1aaf1a3be250a4d00d7f018e11bf20f09d4f844e
HEAD is now at 1aaf1a3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild