$ git clone -n https://src.fedoraproject.org/rpms/xorg-x11-xsm.git /var/lib/mock/f33-build-311304-57445/root/chroot_tmpdir/scmroot/xorg-x11-xsm
Cloning into '/var/lib/mock/f33-build-311304-57445/root/chroot_tmpdir/scmroot/xorg-x11-xsm'...
$ git reset --hard f27d8d428c5e86574d34b703807b61307db9e050
HEAD is now at f27d8d4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild