caching_backend: remove section only after onClose triggers

common/python/nomadcore/caching_backend.py

@@ -110,7 +110,7 @@ class CachingSectionManager(object):
         self.openSections[gIndex] = CachingSection(gIndex, references, storeInSuper = self.storeInSuper)
 
     def closeSection(self, backend, gIndex):
-        toClose = self.openSections.pop(gIndex)
+        toClose = self.openSections[-1]
         for onCloseF in self.onClose:
             onCloseF(backend, gIndex, toClose)
         if toClose.storeInSuper:
@@ -124,6 +124,7 @@ class CachingSectionManager(object):
                 backend.parsingSession.addSubsection(self.metaInfo, toClose)
         if self.forwardOpenClose and backend.superBackend:
             backend.superBackend.closeSection(self.metaInfo.name, gIndex)
+        self.openSections.remove(toClose)
 
     def openSectionInfo(self, gIndex):
         section = openSections.get(gIndex, None)