REST search type restriction should allow space-separated list

[osma]

At which URL did you encounter the problem?

http://api.finto.fi/rest/v1/koko/search?query=kissa&type=http%3A%2F%2Fwww.yso.fi%2Fonto%2Fyso-meta%2FConcept%20http%3A%2F%2Fwww.yso.fi%2Fonto%2Fjupo-meta%2FConcept

What steps will reproduce the problem?

1. Perform REST search with multiple type values as a space-separated list

What is the expected output? What do you see instead?

Expected that the type restriction would be applied (OR semantics). Instead getting a SPARQL error.

The problem is that in ConceptSearchParameters.getTypeLimit() the type parameter is split by plus sign, not space. The value should be split by space, just like the fields parameter.