patch 8.1.2235: "C" with 'virtualedit' set does not include multi-byte char

Problem:    "C" with 'virtualedit' set does not include multi-byte char.
Solution:   Include the whole multi-byte char. (Nobuhiro Takasaki,
            closes #5152)

src/ops.c

@@ -912,6 +912,8 @@ op_delete(oparg_T *oap)
 		oap->end = curwin->w_cursor;
 		curwin->w_cursor = oap->start;
 	    }
+	    if (has_mbyte)
+		mb_adjust_opend(oap);
 	}
 
 	if (oap->line_count == 1)	/* delete characters within one line */

src/testdir/test_virtualedit.vim

@@ -73,3 +73,12 @@ func Test_edit_CTRL_G()
   bwipe!
   set virtualedit=
 endfunc
+
+func Test_edit_change()
+  new
+  set virtualedit=all
+  call setline(1, "\t⒌")
+  normal Cx
+  call assert_equal('x', getline(1))
+  bwipe!
+endfunc

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2235,
 /**/
     2234,
 /**/