I20200315-1800
Introducing LazyScopeQuerySpecification to avoid that FindAction eagerly accesses working set contents on UI thread before the actual query is started in background thread. Change-Id: I966b64d084d4034aefa75d00d9c891b0550c9d6d Signed-off-by: Andrey Loskutov <loskutov@gmx.de>