$ git clone -n https://src.fedoraproject.org/rpms/nullmodem.git /var/lib/mock/f33-build-287768-53907/root/chroot_tmpdir/scmroot/nullmodem
Cloning into '/var/lib/mock/f33-build-287768-53907/root/chroot_tmpdir/scmroot/nullmodem'...
$ git reset --hard af22bd2a4555d93be27ab183569bbc30813ff377
HEAD is now at af22bd2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild