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Unequal: stop ignoring keys 'h' and 'm' while cursor active.

At least, so long as 'h' and 'm' are not "numbers".

--- a/unequal.c

+++ b/unequal.c

@@ -1427,10 +1427,9 @@

         return "";

     }

-

-    if (ui->hshow) {

+    n = c2n(button, state->order);

+    if (ui->hshow && n >= 0 && n <= ds->order) {

         debug(("button %d, cbutton %d", button, (int)((char)button)));

-        n = c2n(button, state->order);

         debug(("n %d, h (%d,%d) p %d flags 0x%x nums %d",

                n, ui->hx, ui->hy, ui->hpencil,

@@ -1437,8 +1436,6 @@

                GRID(state, flags, ui->hx, ui->hy),

                GRID(state, nums, ui->hx, ui->hy)));

-        if (n < 0 || n > ds->order)

-            return NULL;        /* out of range */

         if (GRID(state, flags, ui->hx, ui->hy) & F_IMMUTABLE)

             return NULL;        /* can't edit immutable square (!) */

         if (ui->hpencil && GRID(state, nums, ui->hx, ui->hy) > 0)