$ git clone -n https://src.fedoraproject.org/rpms/gdm.git /var/lib/mock/f31-build-110171-34001/root/chroot_tmpdir/scmroot/gdm
Cloning into '/var/lib/mock/f31-build-110171-34001/root/chroot_tmpdir/scmroot/gdm'...
$ git reset --hard 74e0fe47beda38df5b42c2113abf96b4e1100af4
HEAD is now at 74e0fe4 Update to 3.34.0