[RF] RooFit open issues and backports for 6.28 patch releases

[guitargeek]

The related issues for the original 6.28.00 release:

1. [RF] RooFit open issues and backports for 6.28.00 release #11856

6.28.02

Backports that need to be made for the v6.28 branch (in this particular order from top to bottom, to not have a commit history too different from master):

• [RF] Small fixes to debug printout in RooRealIntegral and RooEffGenContext #12178
• [RF] Fix documentation for RooBrowser #12125
• [RF] Support again same-name pdfs in RooSimultaneous with BatchMode #12236
• Fix build with -Dbuiltin_gtest:BOOL=OFF on EPEL 8 #12250
• [RF] Support RooAbsCategoryLValue::setBin() for non-existing ranges  #12305
• [RF] Correctly normalize max possible val in generation with proto data #12287

The backports were grouped in a few PRs to v6-28-00-patches:

1. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 11 #12321

[guitargeek]

6.28.04

Other items that still need to be done without any associated GitHub issue:

• RooFitHS3: update the docs to reflect the namespace change to RooFit::JSONIO

Backports that need to be made for the v6.28 branch (in this particular order from top to bottom, to not have a commit history too different from master):

• [skip-ci][Windows] Add the prepareHistFactory.bat script #11942
• [RF] Add analytical integral for RooLandau #9539
  The final commit with the code modernization (others have already been backported in [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 1 #11960)
• [RF] Exclude RooGrid class from IO #11963
• [cmake] Fix installation of the prepareHistFactory script on Windows #12015
• [RF] Fix problems with dataset generation from a nested RooSimultaneous with proto data #12022
  Only the last one about throwing the exception in `RooAbsArg::redirectServers (the other commits have been backported already in [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 5 #12057 and [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 7 #12092)
• [RF] Fixes and improvements to RooTruthModel and related tutorials #12180
• RF] Use double and not float all the way in RooFit JSON IO  #12223
• [RF] Support RooPolynomial in RooFit JSON IO and improve test suite #12232
• [RF] Add clad derivative support to RooFuncWrapper #12219
  Except for the first and last commit that relate to the RooFit AD work
• [RF] Where appropriate, take titles from input objects in HistFactory #12304
• Avoid warnings when iterating over a TList in a range-based loop with auto const&& #12442
  Only the first two commits that were not already backported
• [RF] Rewrite RooProdPdf.TestGetPartIntList unit test #12447
• [RF] Improve importing other RooAbsData when creating a RooDataSet #12227
• [RF] Define infinity as std::numeric_limits<double>::infinity() #12016
  Only the commits 1, 2, 5, 6, 8 that don't change the definition of RooNumber::infinity()
• [RF] Avoid overhead of tracking evaluation error messages when not needed #12328
• [RF] Clearly mark RooFit::CloneData() as deprecated #12330
• [RF] HS3: updates to reflect the suggested changes in the RooFit JSON standard #12207
• [RF][HS3] Support for more classes and other improvements #12392
• [RF] Update the HS3 HistFactory implementation #12340
• [RF][HS3] Small HS3 closure fixes #12399
• [HS3][RF] More bugfixes, standard compliance #12413
  Except for commits 5 and 6 that are unrelated to RooFitHS3
• [RF][HS3] Migrate top-level fileds from dicts to lists #12467
• [RF][HS3] Migrate remaining relevant fileds from dicts to lists #12471
• [RF][HS3] Fix handling of RooConstVars and (string) attributes in JSONIO #12470
• [RF][HS3] Fixups to JSON IO following up on migration from dicts to arrays #12487
• [RF][HS3] Bugfixes #12490
• [HS3][RF] Bugfixes and improvements #12504
• [RF] Fix splitting of RooDataSets with weight errors and avoid creating dummy weight variables #12459
• [RF][HS3][HF] ShapeSys bugfixes #12518
• [RF] Don't add weightVar to observables in HistFactory #12556
• [RF] Move ModelConfig from RooStats to RooFit #12578
• [RF][HS3] Correct support for combined datasets and simultaneous pdfs #12577
• [RF] Fix memory leaks from RooAbsL::getParameters() #12595
• [RF] Improvements to RooAbsPdf::paramOn() formatting #12608
  Only the second commit that does not remove deprecated functionality
• [RF][HS3] Fix some closure issues between HistFactory and HistFactory HS3 implementation #12594
• [core] Always assign correct uid output in TRefArray::GetObjectUID() #12640
• [RF] Override TObject::Clone() in RooWorkspace #12638
• DRAFT: [HS3][RF] More bugfixes #12636
• [RF] Introduce RooFit::OwningPtr<T> alias for owning pointers #12614
• Fix compilation error with -std:c++20 #12643
• [RF] Migrate RooAbsPdf::createNLL() to use the RooFit::OwningPtr<T> #12641
• [RF] Use aliasName to lookup existing objects on RooWorkspace import #12647
• [RF] Fix error in RooProdPdf that comes from wrong addOwned() #12660
• [RF] Fixes for nested RooSimultaneous pdfs #12668
• [RF][math][core] Fix some C++20 warnings #12682
• [RF] Don't throw an error if roobatchcompute lib was already loaded #12696
• [RF] Sopport RooRealIntegral variable re-expression also for clones #12699
• [RF] Implement correct sampling for RooGamma with gamma < 1 #12702
• [RF] Fix off-by-one error in HistoToWorkspaceFactoryFast #12707
• [RF] Set BatchMode in stressRooFit via global configuration flag #12719
• [RF] RooProjectedPdf support extended pdfs and normalization ranges #12658
• [RF] Update ParamHistFunc.cxx - remove bogus assertion #12725
• [RF] Support Analytical convolution classes in the RooFit BatchMode CPU and GPU #12141

The backports were grouped in a few PRs to v6-28-00-patches:

1. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 12 #12590
2. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 13 #12618
3. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 14 #12620
4. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 15 #12630
5. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 16 #12681
6. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 17 #12708
7. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 18 #12723
8. [v628][RF] Backports of RooFit PRs to v6-28-00-patches: Part 19 #12733