Bug#1128961: xterm: selection not fully cleared after text changes

On 2026-04-14 03:38:55 -0400, Thomas Dickey wrote:
> fixed in #409

Thanks, this has much improved, but the behavior is still strange.
For instance, after selecting the full body

----------------------------------------
z

1234
123456
12345678
1234567
12

123456
1234
12
----------------------------------------

and typing the <Down> key, the first two lines ("z" and the blank
line that follows) are still selected. In case this is regarded
as an expected behavior to keep a common part of the selection,
this is inconsistent, because when I type the <Up> key to go back
to the first message, the selection is entirely cleared.