Bug: When loading a network from database. If no relations are observed GRNsight crashes

[Onariaginosa]

When you load a network that has no regulatory connections between genes (no edges/links) from the database, it crashes GRNsight. I fixed it while working on #978 and pulled it out to a new issue for clarification. I cannot actually submit a PR for this fix quite yet because the export to excel functionality is not fully functional at the moment. Once #978 is done, a PR will be submitted.

[dondi]

We don’t recall if this was verified—we can verify this alongside #995. After initializing a new database cluster but before loading the schema, run GRNsight against the empty database to check if this issue is indeed addressed

[kdahlquist]

@ahmad00m says he checked this and confirmed that it was fixed.