$ git clone -n https://src.fedoraproject.org/rpms/gnome-shell.git /var/lib/mock/f33-build-368413-61137/root/chroot_tmpdir/scmroot/gnome-shell
Cloning into '/var/lib/mock/f33-build-368413-61137/root/chroot_tmpdir/scmroot/gnome-shell'...
$ git reset --hard 83a19ab7bf21df02b2b9bcc564f47551a4f81ae2
HEAD is now at 83a19ab Backport current patches from gnome-3-38