Notification is sent only if necessary.
It means that if no comment, the user must have read access on at least one updated field.

Change-Id: I21f9573222f5d4c84bee74868e3014f586f47edc
Merge commit 'refs/changes/38/1538/2' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Notification is sent only if necessary. It means that if no comment, the user must have read access on at least one updated field.

Change-Id: Ia5d847e9bc27a28f5230ce03b2c253516dee6804
This is Tuleap 6.7.99.30

Change-Id: I3f2b95e8435b3f9f4cdbccc4b9e36fa390d95e10