This commit addresses a case where a large thread entry body (emailed) is
stored as a file, when fetching it we have to make sure we're only fetching
plain text/html and not attachment files.

This is necessary because ticket filters or API can set an invalid help
topic id. Either deleted or no longer active.

This adds functionality to clean expired password reset tokens on cron runs.

This addresses an issue where FileUploadFields on the ticket header is not
displaying all attachments in the field.

This adds a Signal to clean Agent and User sessions upon setting/resetting
their password. If an Agent/User resets their own password and has multiple
sessions open it will log them out of every session except the one they’re
on.

This commit addresses the root cause of an issue commit 96892beb (now
        reverted) attempted to solve - by providing consistency between
getFiles and getAttachments

This addresses an issue where row conditions are working in the preview but
not in the actual ticket queue. This updates the `getQueue()` function to
lookup the CustomQueue by `queue_id` if there is no CustomQueue object found
in the QueueColumn.

This addresses issue 4449 where using an Arabic language pack and trying to
print a ticket returns a PDF with either squares for text or no text at all.

This addresses an issue where searching for a Task by title returns all
Tasks in the search. This is due to the visibility filtering methods used to
filter tickets by staff's visibility.

This commit removes the logic that was used for time within 2 days which would give a result of either today or tomorrow when something could actually be in 2 days instead.

It also rounds relative time that is within 29 days so that the result will be more accurate.
Ex: 1.99 will round to 2 instead of showing 1

This addresses an issue where Column Conditions are not overwriting the Row
Conditions. This changes the order of `array_merge()` to make Column
Conditions overwrite the Row Conditions.

This alphabetizes all Role and Staff Permissions.

This addresses an issue reported on the forums where the ticket filter Rule
option of “Does Not Match Regex” isn’t working properly; instead it works in
reverse.

This addresses an issue where it appeared as though tasks could not be assigned to teams if an agent in the team was not a part of the task's department. The assigment was actually taking place, however, it was not showing up in the Assignee column. Now the form will correctly display the column

This addresses an issue where uploading a file you’ve uploaded before but
renamed is not saving the new name in the Attachment table.

This addresses an issue where FileUploadFields are displaying the old names
of existing files with new names.

If an Agent has the Miscellaneous setting checked to see all Tickets in search results, they should be able to see the list of Tickets regardless of their access or if the search is saved or not. They should NOT, however, be able to view those Tickets.

This commit adds 'TicketStatus / Status Name' to the main search criteria list for advanced searching.

Retain old search criteria when isolate fails. This provide for ability to
fix issues with isolation post-upgrade.

- Enable/Disable Collaborators based on which Collaborators are in the 'Select Active Collaborators' box

This addresses an issue where the client portal shows Featured FAQs on the
sidebar even thought the Knowledgebase is Disabled.

This commit adds an additional check for Team referrals in the isReferred method so that it is handled in the same way Staff and Departments are handled.

This commit fixes an issue where referrals were being considered successfully saved even if that referral already existed, resulting in multiple thread events for the same referral.

Instead, if we find that the thread is already referred to the referee, refer should return false so that an error message is displayed stating that we were unable to refer the ticket.

This addresses an issue introduced with `9ab2317e` where the icon for the
event still shows even though we continued and didn’t return the event
description.

This addresses an issue introduced with `510046c5` where tickets with no
Help Topic can not be reopened. This is due to a check on `isReopenable()`
where it returns `null` instead of `true` if there is no help topic;
therefore returning false and not allowing the ticket to be reopened.

This reverts commit 14bcd42d.

This removes a significant number of queries used to render the drop-down
menu for the queues.

Each queue displayed on the page previously required a database query to
determine its children. This patch changes the strategy to fetch all the
queues and organize them as a tree. The tree can then be walked as the menu
is rendered and does not require any further queries.

On my test system, it reduces the number of queries for the ticket listing
page from 56 to 46.

This might happen if the close date was added to a queue and filtered
through a date/time filter.

Also fix warning emit when editing queue configuration

Also fix a few crashes if there is a naming mismatch on the field named in
search criteria and the current name of the field. And fix a regression
where the queue criteria would not be properly updated when saved.

If a queue inherits columns from a parent, the conditions would also be
inherited. This fix changes the association by linking the inherited
column to the child queue at run-time. This allows the queue column to
fetch the queue conditions from the child queue which inherited the
columns.

Check 'inherit columns' checkbox when cloning a queue

Fix doubled saved search listing

This addresses issue 4155 where editing a ticket using a different session
causes custom file uploads to drop from the ticket.

This commit addresses an issue where the validation error for trying to save a Ticket without a Help Topic was not being shown as a result of the error message that was added to ensure that the Help Topic selected is Active.

This commit adds an Admin setting that requires a Ticket to have a Help Topic before it can be closed. It can be set by going to:

Admin Panel | Settings | Tickets | Require Help Topic to Close

If enabled, Tickets will have a warning banner across the bottom of the page, a warning banner when trying to change the Ticket status to Closed, and a warning flag beside the field when editing the Ticket.

By default, this setting is NOT enabled.

This addresses an issue where class Queue sets SavedSearches flags to
`FLAG_QUEUE` causing the SavedSearches to become Primary Queues.

This commit addresses an issue where email alerts were not being properly sent out if the name format is set as 'Last, First' or if it has special characters. We now encode names with quotation marks to ensure that emails are sent out properly (escape possible commas).

This addresses an issue where deleting a field and all it's data will
delete the form field record in the database causing all events containing
the field to crash the ticket page.

This commit adds a validation for Help Topics that are saved using Inline Edit. In the event that a Ticket has a disabled Help Topic assigned to it, we want to display the name of the Help Topic, but we want to make sure that value cannot be saved.

In addition, it makes sure that if the Help Topic is disabled, it is the only disabled Help Topic that shows up in the list.