Mosaic pipeline, resample (possibly other steps) expect `ModelLibrary` products have a name

[braingram]

Passing a list of filenames to MosaicPipeline results in a KeyError due to this assumption.

Where:

• stpipe constructs a "fake" association that does not contain a "name" for the first item under "product"
• the MosaicPipeline attempts to access "name" from the 0th product and a KeyError is raised.

Resample (and possibly other steps) has similar code:

romancal/romancal/resample/resample_step.py

Lines 109 to 110 in a859946

	if "name" in input_models.asn["products"][0]:
	output_filename = input_models.asn["products"][0]["name"]

but that looks to be guarded with an appropriate if check.

FWIW the association schema does not require "name":

romancal/romancal/associations/lib/asn_schema_jw_level3.json

Lines 101 to 106 in a859946

	"products": {
	"description": "Array of output products and their required inputs derived from this association.",
	"type": "array",
	"items": {
	"type": "object",
	"required": ["members"],

so in this case stpipe is producing what looks like a valid association.

[braingram]

@stscijgbot-rstdms

[stscijgbot-rstdms]

This issue is tracked on JIRA as RCAL-1348.