If you use Limit with a filter that has an = prefix, it will result in no mounts, as the prefix is not being removed when searching for matches.

MountList.lua:225:
mounts = self:FilterSearch(f) should be mounts = self:FilterSearch(f:sub(2))

Good catch, thanks.

I expect I'll need to put out some new versions for fixups tomorrow after flying unlocks, so I won't release one now. This will be fixed in the next release, however. Thanks.