patch 8.2.4026: ml_get error with specific win_execute() command

Problem:    ml_get error with specific win_execute() command. (Sean Dewar)
Solution:   Check cursor and Visual area are OK.
diff --git a/src/evalwindow.c b/src/evalwindow.c
index d29f3e4..2a97adc 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -743,6 +743,12 @@
 	// Update the status line if the cursor moved.
 	if (win_valid(wp) && !EQUAL_POS(curpos, wp->w_cursor))
 	    wp->w_redr_status = TRUE;
+
+	// In case the command moved the cursor or changed the Visual area,
+	// check it is valid.
+	check_cursor();
+	if (VIsual_active)
+	    check_pos(curbuf, &VIsual);
     }
 }
 
diff --git a/src/testdir/test_execute_func.vim b/src/testdir/test_execute_func.vim
index 0ca31cb..8cd5e7d 100644
--- a/src/testdir/test_execute_func.vim
+++ b/src/testdir/test_execute_func.vim
@@ -153,8 +153,23 @@
   call setline(1, ['a', 'b', 'c'])
   new
   wincmd p
+  " start Visual in current window, redraw in other window with fewer lines
   call feedkeys("G\<C-V>", 'txn')
   call win_execute(winnr('#')->win_getid(), 'redraw')
+  call feedkeys("\<Esc>", 'txn')
+  bwipe!
+  bwipe!
+
+  enew
+  new
+  call setline(1, ['a', 'b', 'c'])
+  let winid = win_getid()
+  wincmd p
+  " start Visual in current window, extend it in other window with more lines
+  call feedkeys("\<C-V>", 'txn')
+  call win_execute(winid, 'call feedkeys("G\<C-V>", ''txn'')')
+  redraw
+
   bwipe!
   bwipe!
 endfunc
diff --git a/src/version.c b/src/version.c
index b0bfc29..40c83bf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4026,
+/**/
     4025,
 /**/
     4024,