buildrun leaves mesh-sdk for the builder's own Go module (ADR 0593 §1); the
checker, assigner, indexer and watchman require it by a replace to the sibling
directory. Issue 1930's bound was already on mesh-sdk's main and moves with it.
The builder copies the imports a build module answers to the done key and the
log's end entry, where the indexer keeps them (§2; D7).
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
ADR 0573 §2: a module builds against the latest published version of
each mesh package it uses, and a package's trunk merge moves every
dependent (issue 1585, S13). The bridge reads the packages each go.sum
names, the indexer keeps them and takes each one's trunk merge into the
fingerprint, a candidate takes a group member's head instead, and the
builder's ask carries the versions so the build module writes them.
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
The builder took a candidate build's merge base from the module's value commit. Now that a value keeps the commit its
fingerprint first appeared at, that commit can be many merges behind the trunk, so a preview would be built onto a stale
trunk (review round 1). The base is now the head of the pull request's repository in the gate's source revision the
candidate names (Candidate.Base): the builder reads mesh-delivery-gate.source, watched with its history (a direct get of
one revision is not what a read grants), and a candidate heard before its revision is built once the revision is heard.