MultiQC does not recognize raw data (txt) from FastQC when in a collection

[jennaj]

Problem: The select menu does not find the FastQC collection input. However, it will find other ~collections~ individual dataset with the txt datatype. Both tool versions impacted and was not a problem before 18.05 pre-release afaik.

Test history: https://usegalaxy.org/u/jen/h/test-history-trimmomatic-trim-galore

dataset 46 should be in the select list:

tool form with other txt collection data in the history: Drilling down into dataset 46 shows that the correct datatype is assigned.