vim-patch:bfeefc4: runtime(doc): clarify the effect of exclusive single char selections (#34289)

closes: vim/vim#17410

bfeefc474a

Co-authored-by: Christian Brabandt <cb@256bit.org>

src/nvim/eval.lua

@@ -4660,6 +4660,10 @@ M.funcs = {
       - It is evaluated in current window context, which makes a
         difference if the buffer is displayed in a window with
         different 'virtualedit' or 'list' values.
+      - When specifying an exclusive selection and {pos1} and {pos2}
+        are equal, the returned list contains a single character as
+        if selection is inclusive, to match the behavior of an empty
+        exclusive selection in Visual mode.
 
       Examples: >vim
       	xnoremap <CR>