fix: bugFix Composite Space-point Line Fitter (acts-project#4950)

Small bug fix

Author: lmonaco99

Core/include/Acts/Seeding/CompositeSpacePointLineFitter.ipp

@@ -316,10 +316,10 @@ CompositeSpacePointLineFitter::fit(
       if (fitTime) {
         if constexpr (fastCalibrator) {
           FastFitDelegate_t<Cont_t, true> fitDelegate{
-              [this, &fitOpts](const Cont_t& measurements,
-                               const std::vector<int>& strawSigns) {
+              [this, &fitOpts, &result](const Cont_t& measurements,
+                                        const std::vector<int>& strawSigns) {
                 const double initialT0 =
-                    fitOpts.startParameters[toUnderlying(FitParIndex::t0)];
+                    result.parameters[toUnderlying(FitParIndex::t0)];
                 return m_fastFitter.fit(fitOpts.calibContext,
                                         *fitOpts.calibrator, measurements,
                                         strawSigns, initialT0);

Tests/UnitTests/Core/Seeding/StrawLineFitterTest.cpp

@@ -207,7 +207,7 @@ BOOST_AUTO_TEST_CASE(SimpleLineFit) {
   fastPreCfg.useFastFitter = true;
   /// Configuration for fast only fit
   Fitter_t::Config fastCfg{fastPreCfg};
-  fastPreCfg.fastPreFitter = false;
+  fastCfg.fastPreFitter = false;
 
   // 2D straw only test
   std::vector<std::pair<std::string, std::future<long int>>> timings{};