Fixed compile error on OGS_USE_PETSC=ON as proposed by Tom.

ProcessLib/UncoupledProcessesTimeLoop.cpp

@@ -527,7 +527,7 @@ bool UncoupledProcessesTimeLoop::setCoupledSolutions()
         }
         _solutions_of_coupled_processes.emplace_back(coupled_xs);
 
-        auto const x = *_process_solutions[pcs_idx];
+        auto const& x = *_process_solutions[pcs_idx];
 
         // Create a vector to store the solution of the last coupling iteration
         auto& x_coupling0 = NumLib::GlobalVectorProvider::provider.getVector(x);

scripts/jenkins/gcc-dynamic.groovy

@@ -26,7 +26,6 @@ stage('CLI (envinf1)') {
     }, petsc: {
         build.linux(dir: 'build-petsc', env: 'envinf1/petsc.sh', script: this)
     }
-
 }
 
 stage('Test (envinf1)') {