Try to prevent any loading of incorrect assemblies
Try to prevent any loading of incorrect assemblies

In at least one case, lncipedia, were were loading regions from an
assembly we don't have data for. We should thus delete those entries.
This should hopefully do that.

RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline,RNAcentral/rnacentral-import-pipeline