[galaxy-dev] list collection output - format set from input

Hi, I have an input, that can be fasta,fastqsanger,fastqillumina: <param name="fastq_input1" type="data" format="fasta,fastqsanger,fastqillumina" label="Select the fastq file" help="Specify fastq file with reads"/> I have multiple outputfiles - bundled in a list collection: <collection name="split_output" type="list" label="@OUTPUT_NAME_PREFIX@ on ${on_string} (Fastq Collection)" format_source="fastq_input1"> <discover_datasets pattern="__name_and_ext__" directory="splits" /> </collection> The format_source parameter doesn't work - the files in the list (extension fq) are of format "fq" How can I make it possible that they are fasta,fastqsanger,fastqillumina depending on fastq_input1? Thanks, Alexander