Commit fa75676efaf8d74eb3f60015fc9a26cef46ff1fc
2020-01-02T15:09:57
md_build_ref_def_hashtable: Minor cleanup. * Add some comments. * Make complex hastable buckets start at 2 records instead of 4. Some experiments show there may be about 20% collisions in documents with too many reference links but the buckets rarely need more then the 2 records so it is just a memory wasting.