JQL with long list of projects is slower in 7.10

Issue Summary

Steps to Reproduce

1. Create JQL with project IN (...) clause, which contains long list of projects(id, key or name)
2. Execute sequence of searches, increase number of projects in clause

Expected Results

Performance of search doesn't degrade

Actual Results

Search performance is degrading proportionally to number of projects.

Getting list of projects involved in JQL query is expensive:

2019-01-04 21:33:40,808 http-nio-8080-exec-18 DEBUG admin 1293x406x1 7uj3d3 89.64.38.139 /rest/issueNav/1/issueTable [c.a.util.profiling.UtilTimerStack] [113ms] - Searching and sorting with Collector
      [113ms] - Lucene Search
        [38ms] - Get Query Projects
        [11ms] - Permission Query
        [0ms] - DefaultJqlOperandResolver.getValues() - multivalue
          [0ms] - MultiValueOperandHandler.getValues()

Note 38ms spent on getting projects from query, which is much more than 11ms spend on generating permission query based on that list.

Workaround

There is no workaround for this behaviour.