hmm ... set a C breakpoint in signal_1[] or wherever, to see
where the error is
actually happening. use debug_backtrace() if necessary. this
should probably
allow you to fix the error properly.
Well the error happens because that's the error you get if you click on part
of a gutter that has nothing in it. I got around to implementing this. So
for 21.4 I just want to squash the error.
andy