MDEV-32132 DROP INDEX followed by CREATE INDEX may corrupt data

ibuf_set_bitmap_for_bulk_load(): Port a bug fix that was made as part of
commit 165564d3 (MDEV-30009)
in MariaDB Server 10.5.19.

storage/innobase/ibuf/ibuf0ibuf.cc

@@ -4944,7 +4944,13 @@ void ibuf_set_bitmap_for_bulk_load(buf_block_t *block, mtr_t *mtr, bool reset)
 	free_val = ibuf_index_page_calc_free(block);
 
 	bitmap_page = ibuf_bitmap_get_map_page(block->page.id,
-                                               block->zip_size(), mtr);
+					       block->zip_size(), mtr);
+
+	if (ibuf_bitmap_page_get_bits(bitmap_page, block->page.id,
+				      block->physical_size(),
+				      IBUF_BITMAP_BUFFERED, mtr)) {
+		ibuf_delete_recs(block->page.id);
+	}
 
 	free_val = reset ? 0 : ibuf_index_page_calc_free(block);
 	ibuf_bitmap_page_set_bits(