This is already done by fish before calling the completion. It breaks completion with combiners (#2025) and also with wrappers. (This does not include git because that's better solved in #2145)
All commands and options available for Bundler version 1.7.4 Signed-off-by: David Adam <zanchey@ucc.gu.uwa.edu.au> (with trailing fullstops removed)
Signed-off-by: David Celis <me@davidcel.is>