Fix tag name/type/gid missing in notifications about tags.
Summary: The logic in AggregatedFetchScope was wrong, it led to fetchIdOnly() being always true. The mechanism in Aggregated* is all based on default_value || A || B || C where A, B, C are the boolean request from every subscriber. This works well for fetchRemoteId(), where the default_value is false. For fetchIdOnly(), what we really want is "(A && B && C)" ("everyone wants fetchIdOnly) which was implemented as "!(A || B || C)" (the '!' in front is the == 0 instead of > 0 in Aggregated*FetchScope::fetchIdOnly()). The flaw in this logic is the default value. With no subscribers, we want fetchIdOnly() == false, while it currently returns true. A default_value of true in the default_value || A || B || C logic, can't work: the result was always true. The solution I implemented is to compare the number of subscribers that called setFetchIdOnly(true) with the total number of subscribers. This directly implements A && B && C, with a default value of false. Test Plan: 1) extended tagstest. 2) this fixes the remaining failures in zanshin's akonadi tests. Reviewers: ervin, dvratil Reviewed By: dvratil Subscribers: kde-pim Tags: #kde_pim Differential Revision: https://phabricator.kde.org/D18556 (cherry picked from commit 25087bb6, sorry about that, arc land messed up once more)