$ git clone -n https://src.fedoraproject.org/rpms/R-bindr.git /var/lib/mock/f45-build-5979-345/root/chroot_tmpdir/scmroot/R-bindr
Cloning into '/var/lib/mock/f45-build-5979-345/root/chroot_tmpdir/scmroot/R-bindr'...
$ git fetch origin b5ce052c1860101b6cb1b1c8c782fc0ca1f0d0fd:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/R-bindr.git/': Failed to connect to src.fedoraproject.org port 443 after 4017 ms: Could not connect to server
$ git reset --hard b5ce052c1860101b6cb1b1c8c782fc0ca1f0d0fd
HEAD is now at b5ce052 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild