[vile] misbehaviour of {

[Marc Simpson]

there seems to be a regression in 9.8q when moving backwards over two
consecutive/adjacent newlines with {. given

--8<--
first paragraph


second paragraph
--8<--

with the cursor on 'f', }} lands on 's' of second (as expected) but {{
gets stuck after the initial backward motion; {{{ {{ and { are
therefore equivalent.

[tested on a vanilla install with `env VILEINIT= vile`.]