Running the compose command inside the directory gives segmentation violation

[vargenau]

A directory sbom-composer containing two files AAA.spdx and BBB.spdx.

Files are attached (suffix .txt added to be able to upload on github).

Running the compose command inside the directory:

cd test-sbom-composer
compose -c ~/git/sbom-composer/config/example_config.yaml -d test-sbom-composer -s test-sbom-composer.spdx 

..generating composed SPDX document from directory: test-sbom-composer
...using config: /home/vargenau/git/sbom-composer/config/example_config.yaml
error while building spdx document reference for path test-sbom-composer with config top-level-artifact, &{https://spdx.org/spdxdocs/ Tool sbom-composer-1.0 [] map[]}: lstat test-sbom-composer: no such file or directory
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x88 pc=0x5c67db]

goroutine 1 [running]:
github.com/vmware-samples/sbom-composer/parser.Build({0x7ffdb2826764, 0x12}, 0xc0000ba000)
	/home/vargenau/go/pkg/mod/github.com/vmware-samples/sbom-composer/parser@v0.0.0-20220830173727-93b7e7dff554/build.go:18 +0x15b
github.com/vmware-samples/sbom-composer/parser.GenerateComposedDoc({0x7ffdb2826764, 0x12}, {0x7ffdb282677a, 0x17}, {0x61b9ad, 0x2}, {0x7ffdb2826725?, 0x0?})
	/home/vargenau/go/pkg/mod/github.com/vmware-samples/sbom-composer/parser@v0.0.0-20220830173727-93b7e7dff554/build.go:34 +0x73
main.runSBOMCompose(0x79c1a0?, {0x61bc54?, 0x6?, 0x6?})
	/home/vargenau/git/sbom-composer/cli/sbom_compose.go:60 +0x171
github.com/spf13/cobra.(*Command).execute(0x79c1a0, {0xc000012080, 0x6, 0x6})
	/home/vargenau/go/pkg/mod/github.com/spf13/cobra@v1.5.0/command.go:872 +0x694
github.com/spf13/cobra.(*Command).ExecuteC(0x79c1a0)
	/home/vargenau/go/pkg/mod/github.com/spf13/cobra@v1.5.0/command.go:990 +0x3b4
github.com/spf13/cobra.(*Command).Execute(...)
	/home/vargenau/go/pkg/mod/github.com/spf13/cobra@v1.5.0/command.go:918
main.main()
	/home/vargenau/git/sbom-composer/cli/sbom_compose.go:67 +0x25

AAA.spdx.txt
BBB.spdx.txt