patch 8.2.3677: after a put the '] mark is on the last byte

Problem:    After a put the '] mark is on the last byte of a multi-byte
            character.
Solution:   Move it to the first byte. (closes #9047)
diff --git a/src/testdir/test_put.vim b/src/testdir/test_put.vim
index de66a6d..c390bbb 100644
--- a/src/testdir/test_put.vim
+++ b/src/testdir/test_put.vim
@@ -197,5 +197,18 @@
   bwipe!
 endfunc
 
+func Test_multibyte_op_end_mark()
+  new
+  call setline(1, 'ั‚ะตัั‚')
+  normal viwdp
+  call assert_equal([0, 1, 7, 0], getpos("'>"))
+  call assert_equal([0, 1, 7, 0], getpos("']"))
+
+  normal Vyp
+  call assert_equal([0, 1, 2147483647, 0], getpos("'>"))
+  call assert_equal([0, 2, 7, 0], getpos("']"))
+  bwipe!
+endfunc
+
 
 " vim: shiftwidth=2 sts=2 expandtab