Merge pull request #16818 from zeertzjq/vim-8.2.3454

vim-patch:8.2.{3454,3455,3497,3540,3581,3678}: some "p" and "gp" patches

src/nvim/ex_docmd.c

@@ -8139,6 +8139,7 @@ static void ex_put(exarg_T *eap)
     eap->forceit = TRUE;
   }
   curwin->w_cursor.lnum = eap->line2;
+  check_cursor_col();
   do_put(eap->regname, NULL, eap->forceit ? BACKWARD : FORWARD, 1,
          PUT_LINE|PUT_CURSLINE);
 }