The interactive analysers now read a member copy of the worker's experiment
with rotation indexing off, so a rotation frame is indexed and predicted on
its own, like a still. They used to wait for the online rotation-indexer
counter, which is about to go; the rotation indexer itself needs the whole
sweep, which only a processing job reads, and those keep the flag. The copy
is refreshed wherever the analysers used to see curr_experiment change in
place (load, indexing settings, ROIs) and outlives the analysers.
(ported from rc184-2 ed86b9b29)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HVeDQsU5a8AJUdJPgWevAK