Category: 16.x

5x: tracker comments should allow self-subscribe option for poster, like in forum posts or page comments. Right now, lost of interaction and feedback is lost for users until they learn how to subscribe to tracker items....

That was the same problem in forum posts for years, until some one added that feature to forum posts and wiki comments...
However, it seems that tracker item comments didn't benefit from that enhancement.... and honestly, they deserve it...

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UPDATE:
* Still a very much desired feature in MANY tiki sites (including *.t.o sites). {sign user="xavi" datetime="2013-11-17T09:30:58+00:00"}
* Still a wish...{sign user="xavi" datetime="2014-07-13T10:00:49+00:00"}
* Still a wish (many years later). Sniff ... {sign user="xavi" datetime="2016-06-28T08:55:07+00:00"}
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Gorgeus, fixed, Victor! Thanks! (tested in tracker comments, and adapted the profile "Bug_Tracker_15" to allow commenting by registered to easily test/debug this issue also in the future (or in other branches). {sign user="xavi" datetime="2016-10-11T17:21:14+00:00"}
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Update: {sign user="xavi" datetime="2016-10-11T17:38:28+00:00"}
* emails are duplicated if the user was also selected in a "user selector" type of field, with notifications on. We should check that no duplication of emails is sent: one as commenter, and another one duplicated as user selected in the "user selector" field with notifications on.
See it reproduced in the show instance:
2 emails have been sent in some cases:
http://xavi-9794-3214.show.tikiwiki.org/tiki-syslog.php
u: admin
p: 12345

* Tracker item commented:
+ http://xavi-9794-3214.show.tikiwiki.org/tiki-view_tracker_item.php?itemId=5
* see email corresponding to each user:
+ http://xavi-9794-3214.show.tikiwiki.org/tiki-adminusers.php
* see tracker field definition:
+ http://xavi-9794-3214.show.tikiwiki.org/tiki-admin_tracker_fields.php?trackerId=1
** note last 3 fields, all of them user selector with email notification on.
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Update {sign user="xavi" datetime="2016-10-13T10:40:17+00:00"}
In addition, other systems maybe sending a duplicate of the same email message (see https://doc.tiki.org/Watch ), and we'd better add a system to prevent those duplicated emails to be sent.
To be checked for duplicates (and remove them before sending):
# generic (wildcard-like) user watches through the "__My Watches (UI) > Add Watch > Event__"
# Objects
** user watches on objects
** group watches on objects
# Categories
** user watches on categories
** group watches on categories
# Structures
** user watches on structures
** group watches on structures

I'm usure about category watches. Maybe we can leave those messages also, since they are not 100% equivalent to the other notification emails?
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Sure, see comments. Issue fixed. {sign user="xavi" datetime="2016-10-14T10:13:36+00:00"}
And duplication of emails was due to some other issue, fixed by kroky6 also (great, thanks!).