--local=/example/ and --address=/example/# create records, which contain
no address or just NULL address. Some people generate quite large
blocklists, which then can take quite long to walk through. Because it
uses linear algorithm, it gets quite slow.
Similar to upstream in 2.86, avoid walking through literal addresses or
local blocks. Speeds up significantly loading of 50k or more records.
Fixed regression caused by commit 73f4c86bcc
Resolves: rhbz#2233542
(cherry picked from commit 418de6681f)
