Thomas Trompette
9e2c870574
## Context Fixes #22947. A workflow with If/Else branches could fail at runtime with `Step not found` (and no detail in the Runs panel) because of dangling `nextStepIds` in the workflow graph — references to steps that no longer exist. ## Root cause An If/Else routes only through `settings.input.branches[].nextStepIds`; its top-level `nextStepIds` is never read by the executor and must stay empty. But converting an existing step into an If/Else copied the previous step's `nextStepIds` onto the new If/Else, leaving a stray top-level reference. That reference is invisible to the executor, and when steps around it are later deleted it becomes dangling and propagates into a normal step's `nextStepIds`, which the executor then tries to follow — `Step not found`. ## Fix When a step's type is changed to If/Else, don't carry over the previous step's `nextStepIds`. One change in `workflow-version-step-update.workspace-service.ts`. ## Verification Reproduced on a local instance via the editor's GraphQL mutations (build `trigger → P → X → D`, convert X to If/Else, delete D then X): - Before: converting X produced a stray `nextStepIds: [D]`, and after the deletes P was left with a dangling reference. - After: converting X yields `nextStepIds: []`, and P stays clean — no dangling reference.
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