Mapped upstream and downstream genes displayed incorrectly in UI

[ljwh2]

According to the mapping pipeline, if there is no direct mapping for a gene, the mapping pipeline will retrieve the nearest upstream and downstream gene within 50kb. Mapped upstream and downstream genes are displayed in the download files separated by a hyphen i.e. GENE1 - GENE2, where as overlapping genes are displayed with a comma i.e. GENE1, GENE2.

Currently upstream and downstream genes are displayed in the UI with a comma, so the user is unable to tell the difference. This needs fixing so the mapped genes are displayed in the same way in the UI as in the download file.

I checked a few and it seems to affect all variants I checked so far.