#658 fixed fetchLabelsRO() test in IssueTest
#658 fixed fetchLabelsRO() test in IssueTest

zygm0nt/jcabi-github,cvrebert/typed-github,cezarykluczynski/jcabi-github,YamStranger/jcabi-github,pecko/jcabi-github,prondzyn/jcabi-github,shelan/jcabi-github