@Override
	public URL getSharedProjectURL(String ref) {
		URL folderURL = parent.getSharedProjectURL();
		if (GhidraURL.isServerRepositoryURL(folderURL)) {
			try {
				String spec = fileName;
				if (!StringUtils.isEmpty(ref)) {
					spec += "#" + ref;
				}
				return new URL(folderURL, spec);
			}
			catch (MalformedURLException e) {
				// ignore
			}
		}
		return null;
	}
{@code LinkedGhidraFile} corresponds to a {@link DomainFile} contained within a
{@link LinkedGhidraFolder}.
Ghidra/Framework/Project/src/main/java/ghidra/framework/data/LinkedGhidraFile.java