$ git clone -n https://src.fedoraproject.org/rpms/postfix.git /var/lib/mock/f38-build-side-42-init-devel-429610-18182/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-429610-18182/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard de7ce9698331af4076b325ed569a0f8cea9e2fd5
HEAD is now at de7ce96 New version