chore: improve score corruption error message (#14)

.github/workflows/pull_request.yml

@@ -24,9 +24,9 @@ jobs:
       cancel-in-progress: true
     timeout-minutes: 120
     steps:
-      # Clone timefold-solver
       # Need to check for stale repo, since Github is not aware of the build chain and therefore doesn't automate it.
       - name: Checkout timefold-solver (PR) # Checkout the PR branch first, if it exists
+        if: github.head_ref # Only true if this is a PR.
         id: checkout-solver
         uses: actions/checkout@v4
         continue-on-error: true
@@ -36,14 +36,15 @@ jobs:
           path: ./timefold-solver
           fetch-depth: 0 # Otherwise merge will fail on account of not having history.
       - name: Checkout timefold-solver (main) # Checkout the main branch if the PR branch does not exist
-        if: steps.checkout-solver.outcome != 'success'
+        if: ${{ steps.checkout-solver.outcome != 'success' }}
         uses: actions/checkout@v4
         with:
           repository: TimefoldAI/timefold-solver
           ref: main
           path: ./timefold-solver
           fetch-depth: 0 # Otherwise merge will fail on account of not having history.
-      - name: Prevent stale fork of timefold-solver
+      - name: Prevent stale fork of timefold-solver # Solver can't be stale if main branch of blessed repo requested.
+        if: ${{ steps.checkout-solver.outcome == 'success' }}
         env:
           BLESSED_REPO: "timefold-solver"
           BLESSED_BRANCH: ${{ endsWith(github.head_ref, '.x') && github.head_ref || 'main' }}
@@ -66,6 +67,7 @@ jobs:
       # Clone timefold-solver-enterprise
       # Need to check for stale repo, since Github is not aware of the build chain and therefore doesn't automate it.
       - name: Checkout timefold-solver-enterprise (PR) # Checkout the PR branch first, if it exists
+        if: github.head_ref # Only true if this is a PR.
         id: checkout-solver-enterprise
         uses: actions/checkout@v4
         continue-on-error: true
@@ -85,6 +87,7 @@ jobs:
           path: ./timefold-solver-enterprise
           fetch-depth: 0 # Otherwise merge will fail on account of not having history.
       - name: Prevent stale fork of timefold-solver-enterprise
+        if: steps.checkout-solver-enterprise.outcome == 'success'
         env:
           BLESSED_REPO: "timefold-solver-enterprise"
           BLESSED_BRANCH: ${{ endsWith(github.head_ref, '.x') && github.head_ref || 'main' }}
@@ -101,6 +104,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: TimefoldAI/timefold-solver-benchmarks
+          ref: ${{ github.head_ref }}
           path: ./timefold-solver-benchmarks
       - name: Build and test timefold-solver-benchmarks
         working-directory: ./timefold-solver-benchmarks

src/main/java/ai/timefold/solver/benchmarks/micro/scoredirector/problems/AbstractProblem.java

@@ -108,7 +108,7 @@ public final void setupIteration() {
         var solverScope = new SolverScope<Solution_>();
         solverScope.setScoreDirector(scoreDirector);
         solverScope.setWorkingRandom(new Random(0)); // Fully reproducible random selection.
-        phaseScope = new LocalSearchPhaseScope<>(solverScope);
+        phaseScope = new LocalSearchPhaseScope<>(solverScope, 0);
         moveSelector.solvingStarted(solverScope);
         moveSelector.phaseStarted(phaseScope);
     }