TimedSubdomainModifier fails for multiple idential times

[grunerjmeier]

Bug Description

If one enters more than one identical times, Moose reports wrongly:

Parameter 'blocks_from' must contain the same number of items as parameter 'times'.

The corresponding input file looks like:

  [UserObjects]
    [GlobalSubdomainModifier]
      type = TimedSubdomainModifier
      times = '      0.4            0.6  0.4'
      blocks_from = '2              4    3'
      blocks_to = '  Box2_inactive  2    Box3_inactive' # Subdomain names are permitted ('Box2_inactive' = 4, etc)
      execute_on = 'INITIAL TIMESTEP_BEGIN'
    []
  []

The reason for this behavior is that the variable _times of type std::set<Real> singulates the "double" times. I'm proposing using a vector here as well.

Unfortunately, I did not see this error in #27092 at the right time. I apologize for this.

Steps to Reproduce

Adapting the test "tsm_direct.i" to have two blocks to be modified at the same time:

# testing TimedSubdomainModifier

[Problem]
    solve = false
    kernel_coverage_check = false
    material_coverage_check = false
  []
  
  Box2_inactive_id = '4'
  Box3_inactive_id = '5'
  Box2_inactive_name = 'Box2_inactive'
  Box3_inactive_name = 'Box3_inactive'
  inactive_domain_block_ids = '${Box2_inactive_id} ${Box3_inactive_id}'
  inactive_domain_block_names = '${Box2_inactive_name} ${Box3_inactive_name}'
  
  [Mesh]
    [BaseMesh]
      type = GeneratedMeshGenerator
      elem_type = TET4
      dim = 3
      nx = 5
      ny = 3
      nz = 2
      xmin = -10
      xmax = +10
      ymin = -10
      ymax = +10
      zmin = -2
      zmax = +2
    []
  
    [Box1]
      type = SubdomainBoundingBoxGenerator
      input = "BaseMesh"
      block_id = 1
      location = "INSIDE"
      bottom_left = "-20 -20 -2"
      top_right = "+20 +20 +2"
    []
  
    [Box2]
      type = SubdomainBoundingBoxGenerator
      input = "Box1"
      block_id = 2
      location = "INSIDE"
      bottom_left = "-2 -2 +2"
      top_right = "0 0 0"
    []
  
    [Box3]
        type = SubdomainBoundingBoxGenerator
        input = "Box2"
        block_id = 3
        location = "INSIDE"
        bottom_left = "0 0 +2"
        top_right = "+2 +2 0"
    []

    add_subdomain_ids = ${inactive_domain_block_ids}
    add_subdomain_names = ${inactive_domain_block_names}
  []
  
  [AuxVariables]
    [dummy]
      type = MooseVariableFVReal
    []
  []
  
  # move elements between subdomains back and forth
  [UserObjects]
    [GlobalSubdomainModifier]
      type = TimedSubdomainModifier
      times = '      0.4            0.6  0.4'
      blocks_from = '2              4    3'
      blocks_to = '  Box2_inactive  2    Box3_inactive' # Subdomain names are permitted ('Box2_inactive' = 4, etc)
      execute_on = 'INITIAL TIMESTEP_BEGIN'
    []
  []
  
  [Executioner]
    type = Transient
  
    end_time = 1.0
    [TimeSteppers]
      [BlockEventTimeStepper]
        type = TimeSequenceStepper
        time_sequence = '0.0 0.2 0.4 0.5 0.6 1.0'
      []
    []
  
    solve_type = 'PJFNK'
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
    petsc_options_value = ' lu       mumps'
  
    nl_abs_tol = 1E-3
    nl_max_its = 400
  
    l_tol = 1E-3
    l_max_its = 200
  []
  
  [Outputs]
    exodus = true
  []

Impact

TimedSubdomainModifier fails if the user enters identical times in one TimedSubdomainModifier. Fixing this will have no negative side effects anywhere else.

[Optional] Diagnostics

No response

[grunerjmeier]

I've created an PR solving this issue: #27943