$ git clone -n https://src.fedoraproject.org/rpms/lightdm.git /var/lib/mock/f33-build-140731-42522/root/chroot_tmpdir/scmroot/lightdm
Cloning into '/var/lib/mock/f33-build-140731-42522/root/chroot_tmpdir/scmroot/lightdm'...
$ git reset --hard f74a840064b964e1b31b3aef04197b1a9a991b40
HEAD is now at f74a840 Suppress s390x gcc-10 build issue