$ git clone -n https://src.fedoraproject.org/rpms/libXext.git /var/lib/mock/f31-build-58088-28403/root/chroot_tmpdir/scmroot/libXext
Cloning into '/var/lib/mock/f31-build-58088-28403/root/chroot_tmpdir/scmroot/libXext'...
$ git reset --hard 3dd9d5e40783479ae1f3e2157a0b712a2cb41718
HEAD is now at 3dd9d5e libXext 1.3.4