resolve: always send DO bit when iterating

Fixes: #153 (closed)

added plan label

Waiting for next major release. Respdiff looks good.

added 1 deleted label

changed milestone to %2019 Q1

changed milestone to %4.0.0

removed plan label

added 33 commits

• e9b4b863...65a04283 - 31 commits from branch master
• 8367e414 - resolve: always send DO bit when iterating or forwarding
• 993ce108 - resolve nitpick: simplify deep nesting in query_finalize()

Compare with previous version

unmarked as a Work In Progress

CI: this kills almost all the answerrrsigs differences – zones that had signatures despite not having a trust chain.

Interestingly, there seems to be a statistically significant decrease of rcode differences, too (in all diffs but visible mainly for iteration). It's possible that some small bug gets hidden by this change.

added 7 commits

• 993ce108...3615852c - 5 commits from branch master
• 31cec524 - resolve: always send DO bit when iterating or forwarding
• b9f3e983 - resolve nitpick: simplify deep nesting in query_finalize()

Compare with previous version

Waiting to be merged at once with !771 (merged).

added 271 commits

• b9f3e983...019ce4fb - 269 commits from branch master
• 96e8fa75 - resolve: always send DO bit when iterating or forwarding
• 5aaee393 - resolve nitpick: simplify deep nesting in query_finalize()

Compare with previous version

added 5 commits

• 5aaee393...052ccdf1 - 3 commits from branch master
• bfc8511b - resolve: always send DO bit when iterating or forwarding
• 579e6d37 - resolve nitpick: simplify deep nesting in query_finalize()

Compare with previous version

mentioned in commit 37510f73

merged