if you add dkim & spf for existing domain it will write to .db file without skipping to next line so at the end it looks like this:
; Add additional settings below this linedefault._domainkey 14400 IN TXT "v=DKIM1; k=rsa;
which makes domain key useless as it's commented out. This happend on all domains when I tried it on various servers.
Similar thing happens with postfix manager and client records...
cwp 0.9.8.6