Packaging Unit Tests doubles the source path in the export

[mattreengage]

When packaging an app with a unit test defined as results in Unit Tests that will not run outside of the developer namespace.

zpm "test myapp -v"

`Load of directory started on 12/06/2022 09:18:01
Loading file /prod/iris/mgr/.modules/DEPOLY/myapp/1.0.3/tests/tests/UnitTest/Module2.cls as cls
Imported class: UnitTest.Module2
Load finished successfully.

Compilation started on 12/06/2022 09:18:01 with qualifiers 'ckd'
Compiling class UnitTest.Module2
Compiling routine UnitTest.Module2.1
Compilation finished successfully in 0.018s.

(root) begins ...
LogStateStatus:0:Finding directories: ERROR #5007: Directory name '/prod/iris/mgr/.modules/DEPOLY/myapp/1.0.3/tests/UnitTest/' is invalid <<==== FAILED (root)::
(root) failed`

Running zpm "package myapp -v" shows the issue is in the packaging phase:
Exporting 'UnitTest.Module2.cls' to '/prod/iris/mgr/Temp/dirOUhCWa/myapp-1.0.3/tests/tests/UnitTest/Module2.cls'

Updating %ZPM.PackageManager.Developer.Processor.Default.Package method OnItemRelativePath
from:
} else { Set tSourceRoot = ..Directory }

to:
} else { Set tSourceRoot = "" }

results in the expected export path and tests that run in both the developer and deployment namespaces