* fix(flows): stop re-evaluating skip_if once a loop is in progress
skip_if is a one-time entry gate, but the flow stays at the same step
for a loop's whole lifetime, so it gets re-evaluated on every
iteration. previous_id stays pinned to the module preceding the loop,
but once the loop is InProgress the last completed job is an inner
iteration, and the results proxy in windmill-jseval aliases
results.<previous_id> to that job's result. skip_if then reads the
wrong value and can flip the loop's module to skipped after one
iteration.
Skip the check once status_module is already InProgress.
* fix(flows): match skip_if gate to sibling entry-state allowlists
Rewrite the skip_if gate as a positive allowlist (WaitingForPriorSteps
| WaitingForEvents | WaitingForExecutor), matching the shape already
used by the BranchOne/BranchAll predicate gates, instead of a negative
filter on InProgress. Restart-at-iteration also enters as InProgress;
document it as a separate case rather than folding it into the
aliasing reason, which does not apply there.
Add a regression test pinning skip_if to run once at while-loop entry.
Davide Modolo
56e21bce83