Adds a specific check to the GenericFilter for the value for in being empty, which means the rest of the query should resolve to False. Also allow a handy way to check if this is the case, and then you can just return no results (eg: implemented in the sequencing group query method.
Closes https://github.com/populationgenomics/metamist/issues/743
Adds a specific check to the GenericFilter for the value for
inbeing empty, which means the rest of the query should resolve to False. Also allow a handy way to check if this is the case, and then you can just return no results (eg: implemented in the sequencing group query method.