In Views, when adding an Argument for a vocabulary term id, I'm presented with the following 2 options:
Allow multiple values If selected, users can enter multiple values in the form of 1+2+3 (for OR) or 1,2,3 (for AND).
Allow multiple filter values to work together If selected, multiple instances of this filter can work together, as though multiple values were supplied to the same filter. This setting is not compatible with the "Reduce duplicates" setting.
The first option is perfectly clear to me. The second, however, I'm struggling with. What exactly does it do, and how does this differ from the "Allow multiple values" option?
Can the two of these options be used together? If so, what would be the expected outcome?