[core] proper check whether class is a TRef or TRefArray

[ferdymercury]

This Pull request:

Changes or fixes:

Fixes https://its.cern.ch/jira/projects/ROOT/issues/ROOT-7052 reported by @olifre

Checklist:

• tested changes locally
• updated the docs (if necessary)

[ferdymercury]

I'll try now with TRefArrayProxy

No luck.

[pcanal]

No luck.

Are you able to reproduce the failure locally? If not, you can use something like:

   //check if element is a TRef or TRefArray
   const bool originalTest = (strncmp(fTypeName.Data(),"TRef",4) != 0);
   TClass* const type = GetClassPointer();
   const bool newTest = (!type || !(type->InheritsFrom(TRef::Class()) || type->InheritsFrom(TRefArray::Class()) || type->InheritsFrom("TVirtualRefProxy"))
   if (originalTest != newTest)
		Fatal("GetExecID", "Problem with type %s original test %d, new test %d\n", 
                  fTypeName.Data(), originalTest, newTest);
   if (originalTest) return 0;

[dpiparo]

time to retest

[ferdymercury]

Same issue :(

[dpiparo]

Trying to build on this solid work with this attempt: #18450