Fixes after rebase

Author: franzpoeschel

src/CustomHierarchy.cpp

@@ -402,8 +402,10 @@ void CustomHierarchy::read(
 
     std::deque<std::string> constantComponentsPushback;
     auto &data = get();
-    EraseStaleMeshes meshesMap(data.embeddedMeshesWrapped());
-    EraseStaleParticles particlesMap(data.embeddedParticlesWrapped());
+    auto embeddedMeshes = data.embeddedMeshesWrapped();
+    auto embeddedParticles = data.embeddedParticlesWrapped();
+    EraseStaleMeshes meshesMap(embeddedMeshes);
+    EraseStaleParticles particlesMap(embeddedParticles);
     for (auto const &path : *pList.paths)
     {
         switch (mpp.determineType(currentPath))

src/backend/Container.cpp

@@ -21,6 +21,7 @@
 
 #include "openPMD/backend/ContainerImpl.tpp"
 
+#include "openPMD/CustomHierarchy.hpp"
 #include "openPMD/Iteration.hpp"
 #include "openPMD/Mesh.hpp"
 #include "openPMD/ParticlePatches.hpp"
@@ -33,6 +34,7 @@ namespace openPMD
 #define OPENPMD_COMMA ,
 #define OPENPMD_INSTANTIATE(type) template class Container<type>;
 
+OPENPMD_INSTANTIATE(CustomHierarchy)
 OPENPMD_INSTANTIATE(Mesh)
 OPENPMD_INSTANTIATE(MeshRecordComponent)
 OPENPMD_INSTANTIATE(ParticlePatches)