Export DB is refusing to export several of my variables defined with expressions... only via the CLI

[JustinPrivitera]

Describe the bug

Some of my user-defined expressions fail to be exported using Blueprint export via the CLI. When I export using the GUI, it works fine.

These same expressions also always fail to be exported using Silo.

Helpful additional information

• Did VisIt crash: no
• Did you get wrong results: yes

To Reproduce

I have created several variables:

	# define some variables for export
	DefineVectorExpression("logical_zoneid", "logical_zoneid(hydro_mesh)")
	DefineScalarExpression("i", "logical_zoneid[0]")
	DefineScalarExpression("j", "logical_zoneid[2]")

When I export using the GUI and request i and j, it works as I would expect. But using the CLI, they do not get exported no matter what I try:

        e = ExportDBAttributes()

        # this first option is what I want
	# e.variables = tuple(akap_names) + tuple(ekap_names) + tuple(vemis_names) + ('den', 'tmat', 'i', 'j')

        # but even doing this second option does not lead to either of the variables being exported
	e.variables = ('i', 'j')

Expected behavior

I expect i and j to be exported.

Desktop

• OS and version: RZ
• VisIt Version: 3.4.1, 3.3.3
• Server info (if applicable):