$ git clone -n https://src.fedoraproject.org/rpms/R-qcc.git /var/lib/mock/f45-build-6357-348/root/chroot_tmpdir/scmroot/R-qcc
Cloning into '/var/lib/mock/f45-build-6357-348/root/chroot_tmpdir/scmroot/R-qcc'...
$ git fetch origin 8445a83d8ca34b732ac614bd651a2694e566a2e4:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/R-qcc.git/': Failed to connect to src.fedoraproject.org port 443 after 3897 ms: Could not connect to server
$ git reset --hard 8445a83d8ca34b732ac614bd651a2694e566a2e4
HEAD is now at 8445a83 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild