in src/parsers/odata-parser.ts [238:250]
public makeFilterStatementSimple(rootClause: WorkItemQueryClause, superTypePrefix: string = ''): string {
if (rootClause == null) {
return null;
}
const oDataClauses = this.visitClauses(rootClause, superTypePrefix);
if (oDataClauses == null || oDataClauses === '' || oDataClauses === '()') {
return null;
}
return oDataClauses;
}