Link to external BinderHub instance includes query parameter directing to path 'None'
Steps to reproduce:
From 'Interactive Analysis' tab of ESAP, select HCG-16
workflow, then 'SKAO BinderHub' (though the same behaviour is seen with others), and hit 'Deploy'. Once environment is created, an error dialog states "Could not find path: None".
Expected behaviour:
Environment is launched with no errors.
Possible cause:
The redirect URL includes the query parameter ?urlpath=lab/tree/None
which is seemingly the cause of the issue, though I'm not sure what the intent of this query parameter is, since without it JupyterHub would presumably default to the repository root anyway?