fix position translation at EOF with softwrap (#5786)

helix-term/src/ui/document.rs

@@ -207,7 +207,9 @@ pub fn render_text<'t>(
             it
         } else {
             let mut last_pos = formatter.visual_pos();
+            if last_pos.row >= row_off {
                 last_pos.col -= 1;
+                last_pos.row -= row_off;
                 // check if any positions translated on the fly (like cursor) are at the EOF
                 translate_positions(
                     char_pos + 1,
@@ -217,6 +219,7 @@ pub fn render_text<'t>(
                     renderer,
                     last_pos,
                 );
+            }
             break;
         };