Workflow
********

The bug status workflow—which statuses are valid transitions from
which other statuses—can be customized.

You need to begin by defining the statuses and resolutions you want to
use (see Field Values). By convention, these are in all capital
letters.

Only one bug status, UNCONFIRMED, can never be renamed nor deleted.
However, it can be disabled entirely on a per-product basis (see
Classifications, Products, Components, Versions, and Milestones). The
status referred to by the duplicate_or_move_bug_status parameter, if
set, is also undeletable. To make it deletable, simply set the value
of that parameter to a different status.

Aside from the empty value, two resolutions, DUPLICATE and FIXED,
cannot be renamed or deleted. (FIXED could be if we fixed bug
1007605.)

Once you have defined your statuses, you can configure the workflow of
how a bug moves between them. The workflow configuration page displays
all existing bug statuses twice: first on the left for the starting
status, and on the top for the target status in the transition. If the
checkbox is checked, then the transition from the left to the top
status is legal; if it's unchecked, that transition is forbidden.

The status used as the duplicate_or_move_bug_status parameter
(normally RESOLVED or its equivalent) is required to be a legal
transition from every other bug status, and so this is enforced on the
page.

The "View Comments Required on Status Transitions" link below the
table lets you set which transitions require a comment from the user.

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This documentation undoubtedly has bugs; if you find some, please file
them here.
