The "must" search operator in blevesearch can't be passed into ponzu

[necokeine]

E.g. a query "+fielda:xxx +fieldb:bbb" will be recognized as " fielda:xxx fieldb:bbb" in ponzu, and got wrong search result.

[necokeine]

I fixed it locally with removing "url.QueryUnescape" in this line.

ponzu/system/api/search.go

Line 34 in 9bc41b7

q, err := url.QueryUnescape(qs.Get("q"))