Strange interaction with Subset plot atts and time-varying SIL/MetaData datasets.

[biagas]

Describe the bug

While creating a new test, I noticed that changing Subset Plot attributes multicolor objects (changing some to semi-transparent), affected subsequent Subset plots in the same test file.

Here's a reproducer that can be used in the regression infrastructure, the second test should be fully opaque but is not.
Attempting same steps in GUI does not reproduce.

If SetTreatAllDBsAsTimeVarying(1) is commented out, then the second plot is fully opaque as expected.
So the problem seems tied to having both a time-varying SIL and time-varying MetaData.

SetTreatAllDBsAsTimeVarying(1)

OpenDatabase(silo_data_path("hist_ucd3d_* database"))
AddPlot("Subset", "domains(mesh1)")
s = SubsetAttributes()
s.SetMultiColor(0,(255,0,0,68))
s.SetMultiColor(1,(0,255,0,68))
s.SetMultiColor(2,(0,0,255,68))
s.SetMultiColor(3,(0,255,255,68))
SetPlotOptions(s)
DrawPlots()

v = GetView3D()
v.viewNormal=(0,0,-1)
SetView3D(v)

Test("tv_silo_01")

# this doesn't help:
ResetPlotOptions("Subset")

DeleteAllPlots()

# next two commands aren't really necessary in order to reproduce, but duplicate what I was originally attempting
CloseDatabase(silo_data_path("hist_ucd3d_* database"))

OpenDatabase(silo_data_path("hist_ucd3d_* database"))

# this plot should be fully opaque
AddPlot("Subset", "domains(mesh1)")
DrawPlots()
Test("tv_silo_02")

DeleteAllPlots()
CloseDatabase(silo_data_path("hist_ucd3d_* database"))

Helpful additional information
Did VisIt crash:

• Did you get wrong results: YES

Expected behavior

Changing Subset plot multicolor attributes should not affect future Subset plots.

Desktop

• OS and version: Can reproduce on Linux/Windows
• VisIt Version: 3.4.2