Possible workaround of test20_LazyPullAttachments test exception
Possible workaround of test20_LazyPullAttachments test exception

Instead of using -[XCTest keyValueObservingExpectationForObject:...],
do the KVO myself.

gotmyjobs/couchbase-lite-ios,alfared/couchbase-lite-ios,alfared/couchbase-lite-ios,couchbase/couchbase-lite-ios,lordkev/couchbase-lite-ios,tomco/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,couchbase/couchbase-lite-ios,amco/couchbase-lite-ios,amco/couchbase-lite-ios,brendand/couchbase-lite-ios,brendand/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,amco/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,gotmyjobs/couchbase-lite-ios,brendand/couchbase-lite-ios,amco/couchbase-lite-ios,lordkev/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,lordkev/couchbase-lite-ios,alfared/couchbase-lite-ios,couchbase/couchbase-lite-ios,lordkev/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,couchbase/couchbase-lite-ios,amco/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,ipmobiletech/couchbase-lite-ios,brendand/couchbase-lite-ios,alfared/couchbase-lite-ios,tomco/couchbase-lite-ios,pellekrogholt/couchbase-lite-ios,amco/couchbase-lite-ios,tomco/couchbase-lite-ios,amco/couchbase-lite-ios,couchbase/couchbase-lite-ios,tomco/couchbase-lite-ios,couchbase/couchbase-lite-ios,brendand/couchbase-lite-ios